./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/up.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/up.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:08:16,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:08:16,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:08:17,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:08:17,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:08:17,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:08:17,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:08:17,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:08:17,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:08:17,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:08:17,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:08:17,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:08:17,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:08:17,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:08:17,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:08:17,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:08:17,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:08:17,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:08:17,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:08:17,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:08:17,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:08:17,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:08:17,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:08:17,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:08:17,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:08:17,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:08:17,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:08:17,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:08:17,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:08:17,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:08:17,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:08:17,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:08:17,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:08:17,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:08:17,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:08:17,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:08:17,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:08:17,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:08:17,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:08:17,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:08:17,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:08:17,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 23:08:17,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:08:17,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:08:17,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:08:17,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:08:17,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:08:17,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:08:17,149 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:08:17,149 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 23:08:17,150 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 23:08:17,150 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 23:08:17,151 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 23:08:17,152 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 23:08:17,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 23:08:17,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:08:17,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:08:17,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:08:17,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:08:17,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:08:17,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:08:17,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 23:08:17,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 23:08:17,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 23:08:17,155 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:08:17,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:08:17,156 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 23:08:17,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:08:17,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 23:08:17,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:08:17,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:08:17,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:08:17,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:08:17,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:08:17,162 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 23:08:17,162 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_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f [2021-11-02 23:08:17,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:08:17,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:08:17,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:08:17,523 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:08:17,524 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:08:17,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/loop-invgen/up.i [2021-11-02 23:08:17,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/data/b3e2a977b/acc8c706aad64ce08daa5c56e9189a47/FLAG70e22f2d8 [2021-11-02 23:08:18,207 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:08:18,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/sv-benchmarks/c/loop-invgen/up.i [2021-11-02 23:08:18,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/data/b3e2a977b/acc8c706aad64ce08daa5c56e9189a47/FLAG70e22f2d8 [2021-11-02 23:08:18,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/data/b3e2a977b/acc8c706aad64ce08daa5c56e9189a47 [2021-11-02 23:08:18,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:08:18,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:08:18,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:08:18,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:08:18,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:08:18,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:18,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7747293a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18, skipping insertion in model container [2021-11-02 23:08:18,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:18,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:08:18,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:08:18,861 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/sv-benchmarks/c/loop-invgen/up.i[893,906] [2021-11-02 23:08:18,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:08:18,896 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:08:18,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/sv-benchmarks/c/loop-invgen/up.i[893,906] [2021-11-02 23:08:18,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:08:18,956 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:08:18,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18 WrapperNode [2021-11-02 23:08:18,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:08:18,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:08:18,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:08:18,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:08:18,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:18,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:08:19,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:08:19,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:08:19,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:08:19,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:08:19,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:08:19,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:08:19,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:08:19,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (1/1) ... [2021-11-02 23:08:19,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:19,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:19,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:19,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 23:08:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:08:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:08:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:08:19,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:08:19,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:08:19,405 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-02 23:08:19,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:08:19 BoogieIcfgContainer [2021-11-02 23:08:19,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:08:19,409 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 23:08:19,409 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 23:08:19,413 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 23:08:19,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:08:19,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 11:08:18" (1/3) ... [2021-11-02 23:08:19,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d51debf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:08:19, skipping insertion in model container [2021-11-02 23:08:19,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:08:19,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:18" (2/3) ... [2021-11-02 23:08:19,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d51debf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:08:19, skipping insertion in model container [2021-11-02 23:08:19,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:08:19,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:08:19" (3/3) ... [2021-11-02 23:08:19,419 INFO L389 chiAutomizerObserver]: Analyzing ICFG up.i [2021-11-02 23:08:19,475 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 23:08:19,475 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 23:08:19,476 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 23:08:19,476 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 23:08:19,476 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 23:08:19,476 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 23:08:19,476 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 23:08:19,477 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 23:08:19,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:19,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-02 23:08:19,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:08:19,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:08:19,526 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 23:08:19,526 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 23:08:19,527 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 23:08:19,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:19,549 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-02 23:08:19,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:08:19,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:08:19,549 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 23:08:19,550 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 23:08:19,558 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 8#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 12#L29-2true [2021-11-02 23:08:19,558 INFO L793 eck$LassoCheckResult]: Loop: 12#L29-2true assume !!(main_~i~0 < main_~n~0);main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4;main_#t~post5 := main_~k~0;main_~k~0 := 1 + main_#t~post5;havoc main_#t~post5; 12#L29-2true [2021-11-02 23:08:19,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:19,580 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-02 23:08:19,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:19,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059534588] [2021-11-02 23:08:19,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:19,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:19,734 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:19,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:19,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-02 23:08:19,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:19,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119607811] [2021-11-02 23:08:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:19,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:19,791 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:19,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:19,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-02 23:08:19,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:19,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037032570] [2021-11-02 23:08:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:19,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:19,840 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:19,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:20,024 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:08:20,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:08:20,025 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:08:20,025 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:08:20,025 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:08:20,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:08:20,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:08:20,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2021-11-02 23:08:20,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:08:20,027 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:08:20,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:08:20,128 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:08:20,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:20,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:20,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 23:08:20,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:08:20,167 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:08:20,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 23:08:20,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:20,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:20,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:08:20,242 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:08:20,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-02 23:08:20,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,280 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 23:08:20,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:20,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:20,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 23:08:20,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:08:20,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:20,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:08:20,394 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-1}, {ULTIMATE.start_main_~k~0=-1}, {ULTIMATE.start_main_~k~0=3}] Lambdas: [1, 4, 1] Nus: [0, 1] [2021-11-02 23:08:20,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 23:08:20,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:20,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:20,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,505 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 23:08:20,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:08:20,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:20,686 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:08:20,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,689 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:08:20,689 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:08:20,689 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:08:20,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:08:20,690 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:08:20,699 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,699 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:08:20,699 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:08:20,699 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2021-11-02 23:08:20,699 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:08:20,699 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:08:20,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:20,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:08:20,766 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:08:20,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,770 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,795 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 [2021-11-02 23:08:20,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:20,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:20,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:20,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:20,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:20,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 23:08:20,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:20,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:20,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:08:20,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,881 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 23:08:20,891 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 [2021-11-02 23:08:20,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:20,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:20,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:20,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:20,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:20,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:20,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:20,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:08:20,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:20,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:20,947 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:20,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 23:08:20,950 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 [2021-11-02 23:08:20,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:20,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:20,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:20,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:20,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:20,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:20,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:20,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:08:21,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:21,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:21,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:21,010 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:21,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 23:08:21,013 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 [2021-11-02 23:08:21,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:21,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:21,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:21,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:21,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:21,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:21,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:21,038 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:08:21,045 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-02 23:08:21,046 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 23:08:21,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:21,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:21,050 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:21,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 23:08:21,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:08:21,060 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:08:21,060 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:08:21,061 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-11-02 23:08:21,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:21,099 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:08:21,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:21,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:08:21,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:21,195 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:08:21,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:21,215 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-02 23:08:21,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-02 23:08:21,267 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 28 states and 38 transitions. Complement of second has 5 states. [2021-11-02 23:08:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 23:08:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-02 23:08:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-11-02 23:08:21,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-02 23:08:21,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:21,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-02 23:08:21,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:21,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-02 23:08:21,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:21,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2021-11-02 23:08:21,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 23:08:21,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 10 transitions. [2021-11-02 23:08:21,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-02 23:08:21,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-02 23:08:21,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-11-02 23:08:21,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:08:21,286 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-02 23:08:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-11-02 23:08:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-02 23:08:21,317 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) [2021-11-02 23:08:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-11-02 23:08:21,319 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-02 23:08:21,319 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-02 23:08:21,320 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 23:08:21,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-11-02 23:08:21,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 23:08:21,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:08:21,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:08:21,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-02 23:08:21,321 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 23:08:21,322 INFO L791 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 74#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 77#L29-2 assume !(main_~i~0 < main_~n~0); 75#L29-3 main_~j~0 := 0; 76#L34-2 [2021-11-02 23:08:21,322 INFO L793 eck$LassoCheckResult]: Loop: 76#L34-2 assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 71#L18 assume !(0 == __VERIFIER_assert_~cond); 72#L18-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6;main_#t~post7 := main_~k~0;main_~k~0 := main_#t~post7 - 1;havoc main_#t~post7; 76#L34-2 [2021-11-02 23:08:21,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:21,323 INFO L85 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2021-11-02 23:08:21,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:21,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913027543] [2021-11-02 23:08:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:21,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:21,340 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:21,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:21,359 INFO L85 PathProgramCache]: Analyzing trace with hash 53850, now seen corresponding path program 1 times [2021-11-02 23:08:21,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:21,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506796695] [2021-11-02 23:08:21,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:21,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:21,371 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:21,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1808851250, now seen corresponding path program 1 times [2021-11-02 23:08:21,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:21,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615532669] [2021-11-02 23:08:21,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:21,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:21,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:21,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615532669] [2021-11-02 23:08:21,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615532669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:21,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:21,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:08:21,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952568931] [2021-11-02 23:08:21,595 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:08:21,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:08:21,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:08:21,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:08:21,596 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:08:21,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:21,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:08:21,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:08:21,597 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2021-11-02 23:08:21,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:08:21,597 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:08:21,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:21,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:21,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:21,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:21,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:21,702 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:08:21,702 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:08:21,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:21,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:21,710 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:21,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:21,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:21,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 23:08:21,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:08:21,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:08:21,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:21,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:21,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:21,801 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:21,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:21,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:21,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 23:08:21,838 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:08:21,838 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:08:21,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:21,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:21,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:21,871 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:21,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 23:08:21,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:21,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:21,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:21,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:21,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:21,922 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:21,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:08:21,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:21,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 23:08:22,126 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:08:22,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-11-02 23:08:22,130 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:08:22,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:08:22,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:08:22,130 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:08:22,130 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:08:22,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:22,130 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:08:22,130 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:08:22,130 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2021-11-02 23:08:22,130 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:08:22,130 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:08:22,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:22,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:22,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:22,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:22,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:22,249 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:08:22,249 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:08:22,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:22,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:22,250 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:22,259 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 [2021-11-02 23:08:22,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:22,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:22,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:22,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:22,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:22,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 23:08:22,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:22,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:22,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:08:22,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:22,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:22,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:22,362 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:22,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 23:08:22,367 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 [2021-11-02 23:08:22,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:22,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:22,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:22,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:22,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:22,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:22,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:22,406 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:08:22,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:22,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:22,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:22,450 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:22,471 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 [2021-11-02 23:08:22,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:22,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:22,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:22,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:22,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:22,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:22,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:22,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 23:08:22,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:08:22,500 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 23:08:22,500 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 23:08:22,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:22,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:22,526 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:22,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 23:08:22,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:08:22,547 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:08:22,547 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:08:22,547 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-11-02 23:08:22,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:22,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:22,587 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:08:22,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:22,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:08:22,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:22,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:08:22,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:22,729 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 [2021-11-02 23:08:22,729 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) [2021-11-02 23:08:22,740 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. [2021-11-02 23:08:22,740 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 [2021-11-02 23:08:22,741 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) [2021-11-02 23:08:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-11-02 23:08:22,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-02 23:08:22,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:22,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-02 23:08:22,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:22,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-02 23:08:22,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:22,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2021-11-02 23:08:22,745 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:08:22,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-11-02 23:08:22,746 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:08:22,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:08:22,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:08:22,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:08:22,746 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:22,746 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:22,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:22,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:08:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:08:22,761 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:22,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:22,765 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-02 23:08:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:08:22,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-02 23:08:22,766 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:08:22,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 23:08:22,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:08:22,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:08:22,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:08:22,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:08:22,767 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:22,767 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:22,767 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:22,767 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 23:08:22,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:08:22,768 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:08:22,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 23:08:22,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 11:08:22 BoogieIcfgContainer [2021-11-02 23:08:22,776 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 23:08:22,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:08:22,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:08:22,777 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:08:22,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:08:19" (3/4) ... [2021-11-02 23:08:22,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:08:22,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:08:22,784 INFO L168 Benchmark]: Toolchain (without parser) took 4196.25 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 63.3 MB in the beginning and 94.2 MB in the end (delta: -30.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:22,785 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 69.4 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:22,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.50 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 73.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:22,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 98.6 MB. Free memory was 73.6 MB in the beginning and 72.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:22,788 INFO L168 Benchmark]: Boogie Preprocessor took 52.22 ms. Allocated memory is still 98.6 MB. Free memory was 72.3 MB in the beginning and 71.4 MB in the end (delta: 897.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:22,788 INFO L168 Benchmark]: RCFGBuilder took 343.67 ms. Allocated memory is still 98.6 MB. Free memory was 71.0 MB in the beginning and 62.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:22,789 INFO L168 Benchmark]: BuchiAutomizer took 3366.60 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 62.3 MB in the beginning and 94.5 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:22,790 INFO L168 Benchmark]: Witness Printer took 5.59 ms. Allocated memory is still 127.9 MB. Free memory was 94.5 MB in the beginning and 94.2 MB in the end (delta: 304.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:22,795 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 69.4 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.50 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 73.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 98.6 MB. Free memory was 73.6 MB in the beginning and 72.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.22 ms. Allocated memory is still 98.6 MB. Free memory was 72.3 MB in the beginning and 71.4 MB in the end (delta: 897.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 343.67 ms. Allocated memory is still 98.6 MB. Free memory was 71.0 MB in the beginning and 62.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3366.60 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 62.3 MB in the beginning and 94.5 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.59 ms. Allocated memory is still 127.9 MB. Free memory was 94.5 MB in the beginning and 94.2 MB in the end (delta: 304.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function n + -1 * j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 15 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 23:08:22,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:23,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57ba0634-d08b-47a3-b8ee-af813d0384ac/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE