./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/2Nested-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/2Nested-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 98e3578cd96fe8b8eee528450509f182c2f5e45fbe2813a1c7e5d95c43606358 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:36:58,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:36:58,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:36:58,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:36:58,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:36:58,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:36:58,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:36:58,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:36:58,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:36:58,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:36:58,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:36:58,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:36:58,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:36:58,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:36:58,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:36:58,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:36:58,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:36:58,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:36:58,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:36:58,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:36:58,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:36:58,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:36:58,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:36:58,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:36:58,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:36:58,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:36:58,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:36:58,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:36:58,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:36:58,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:36:58,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:36:58,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:36:58,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:36:58,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:36:58,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:36:58,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:36:58,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:36:58,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:36:58,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:36:58,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:36:58,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:36:58,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 12:36:58,205 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:36:58,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:36:58,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:36:58,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:36:58,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:36:58,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:36:58,207 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:36:58,207 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:36:58,207 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:36:58,207 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:36:58,207 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:36:58,207 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:36:58,207 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:36:58,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:36:58,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:36:58,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:36:58,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:36:58,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:36:58,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:36:58,210 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:36:58,210 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_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98e3578cd96fe8b8eee528450509f182c2f5e45fbe2813a1c7e5d95c43606358 [2022-12-13 12:36:58,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:36:58,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:36:58,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:36:58,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:36:58,392 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:36:58,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-crafted/2Nested-1.c [2022-12-13 12:37:00,921 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:37:01,072 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:37:01,073 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/sv-benchmarks/c/termination-crafted/2Nested-1.c [2022-12-13 12:37:01,077 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/data/a2f923bff/ba332f7ed1e14645a618ae6e5415e959/FLAG11e09e320 [2022-12-13 12:37:01,086 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/data/a2f923bff/ba332f7ed1e14645a618ae6e5415e959 [2022-12-13 12:37:01,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:37:01,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:37:01,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:37:01,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:37:01,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:37:01,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f624b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01, skipping insertion in model container [2022-12-13 12:37:01,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:37:01,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:37:01,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:37:01,222 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:37:01,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:37:01,243 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:37:01,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01 WrapperNode [2022-12-13 12:37:01,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:37:01,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:37:01,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:37:01,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:37:01,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,264 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-12-13 12:37:01,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:37:01,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:37:01,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:37:01,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:37:01,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,280 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:37:01,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:37:01,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:37:01,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:37:01,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (1/1) ... [2022-12-13 12:37:01,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:01,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:01,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:01,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:37:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:37:01,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:37:01,407 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:37:01,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:37:01,452 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:37:01,457 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:37:01,457 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 12:37:01,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:37:01 BoogieIcfgContainer [2022-12-13 12:37:01,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:37:01,460 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:37:01,460 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:37:01,463 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:37:01,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:37:01,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:37:01" (1/3) ... [2022-12-13 12:37:01,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@278844a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:37:01, skipping insertion in model container [2022-12-13 12:37:01,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:37:01,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:37:01" (2/3) ... [2022-12-13 12:37:01,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@278844a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:37:01, skipping insertion in model container [2022-12-13 12:37:01,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:37:01,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:37:01" (3/3) ... [2022-12-13 12:37:01,466 INFO L332 chiAutomizerObserver]: Analyzing ICFG 2Nested-1.c [2022-12-13 12:37:01,506 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:37:01,506 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:37:01,506 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:37:01,506 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:37:01,506 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:37:01,506 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:37:01,506 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:37:01,506 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:37:01,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-12-13 12:37:01,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 12:37:01,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:37:01,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:37:01,527 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 12:37:01,527 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 12:37:01,527 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:37:01,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-12-13 12:37:01,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 12:37:01,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:37:01,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:37:01,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 12:37:01,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 12:37:01,534 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L21true assume !!(main_~x~0#1 <= 65534); 3#L22true assume !!(main_~y~0#1 <= 65534); 10#L24true assume !!(main_~y~0#1 >= -65534); 4#L25-2true [2022-12-13 12:37:01,534 INFO L750 eck$LassoCheckResult]: Loop: 4#L25-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 + main_~y~0#1;main_~y~0#1 := main_~y~0#1 - 1; 4#L25-2true [2022-12-13 12:37:01,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:01,538 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2022-12-13 12:37:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:01,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710715274] [2022-12-13 12:37:01,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:01,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:37:01,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:37:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:37:01,622 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:37:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2022-12-13 12:37:01,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:01,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761676553] [2022-12-13 12:37:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:01,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:37:01,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:37:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:37:01,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:37:01,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:01,638 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times [2022-12-13 12:37:01,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:01,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413789676] [2022-12-13 12:37:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:01,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:37:01,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:37:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:37:01,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:37:01,711 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:37:01,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:37:01,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:37:01,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:37:01,713 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:37:01,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:01,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:37:01,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:37:01,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: 2Nested-1.c_Iteration1_Loop [2022-12-13 12:37:01,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:37:01,714 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:37:01,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:37:01,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:37:01,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:37:01,821 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:37:01,821 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:37:01,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:01,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:01,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:01,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 12:37:01,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:37:01,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:37:01,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:37:01,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:37:01,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:37:01,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:01,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:01,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:01,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 12:37:01,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:37:01,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:37:01,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:37:01,882 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:37:01,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 12:37:01,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:01,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:01,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:01,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 12:37:01,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:37:01,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:37:01,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 12:37:01,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:01,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:01,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:01,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 12:37:01,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:37:01,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:37:02,012 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:37:02,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 12:37:02,016 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:37:02,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:37:02,017 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:37:02,017 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:37:02,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:37:02,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:37:02,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:37:02,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: 2Nested-1.c_Iteration1_Loop [2022-12-13 12:37:02,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:37:02,018 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:37:02,020 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:37:02,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:37:02,028 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:37:02,073 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:37:02,076 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:37:02,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:02,078 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:02,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 12:37:02,081 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 [2022-12-13 12:37:02,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:37:02,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:37:02,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:37:02,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:37:02,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 12:37:02,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 12:37:02,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:37:02,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 12:37:02,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:02,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:02,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 12:37:02,111 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 [2022-12-13 12:37:02,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:37:02,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:37:02,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:37:02,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:37:02,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 12:37:02,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 12:37:02,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:37:02,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 12:37:02,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:02,137 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:02,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 12:37:02,139 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 [2022-12-13 12:37:02,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:37:02,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:37:02,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:37:02,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:37:02,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:37:02,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:37:02,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:37:02,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:37:02,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-12-13 12:37:02,158 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-12-13 12:37:02,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:02,159 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:02,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 12:37:02,162 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 [2022-12-13 12:37:02,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:37:02,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:37:02,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:37:02,173 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:37:02,176 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-12-13 12:37:02,177 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-12-13 12:37:02,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:37:02,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 12:37:02,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:02,187 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:02,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 12:37:02,190 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 [2022-12-13 12:37:02,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:37:02,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:37:02,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:37:02,201 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:37:02,205 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-12-13 12:37:02,205 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-12-13 12:37:02,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:37:02,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 12:37:02,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:02,217 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:02,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 12:37:02,219 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 [2022-12-13 12:37:02,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:37:02,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:37:02,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:37:02,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:37:02,230 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 12:37:02,232 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-12-13 12:37:02,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:37:02,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:37:02,242 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:37:02,242 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 12:37:02,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:37:02,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:02,273 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:37:02,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 12:37:02,275 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:37:02,275 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:37:02,276 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:37:02,276 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~y~0#1 + 1 f1 = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-12-13 12:37:02,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 12:37:02,284 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:37:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:02,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:37:02,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:37:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:02,341 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:37:02,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:37:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:37:02,370 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 12:37:02,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:37:02,401 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 27 transitions. Complement of second has 5 states. [2022-12-13 12:37:02,403 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 [2022-12-13 12:37:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:37:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-12-13 12:37:02,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2022-12-13 12:37:02,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:37:02,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 1 letters. [2022-12-13 12:37:02,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:37:02,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2022-12-13 12:37:02,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:37:02,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2022-12-13 12:37:02,411 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 12:37:02,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2022-12-13 12:37:02,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 12:37:02,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 12:37:02,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 12:37:02,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:37:02,414 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:37:02,414 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:37:02,414 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:37:02,414 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:37:02,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 12:37:02,414 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 12:37:02,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 12:37:02,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:37:02 BoogieIcfgContainer [2022-12-13 12:37:02,419 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:37:02,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:37:02,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:37:02,420 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:37:02,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:37:01" (3/4) ... [2022-12-13 12:37:02,422 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:37:02,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:37:02,423 INFO L158 Benchmark]: Toolchain (without parser) took 1333.83ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 63.3MB in the end (delta: 75.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-12-13 12:37:02,423 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:37:02,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.71ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 129.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:37:02,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.96ms. Allocated memory is still 172.0MB. Free memory was 129.8MB in the beginning and 128.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:37:02,424 INFO L158 Benchmark]: Boogie Preprocessor took 15.69ms. Allocated memory is still 172.0MB. Free memory was 128.4MB in the beginning and 127.7MB in the end (delta: 658.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:37:02,424 INFO L158 Benchmark]: RCFGBuilder took 178.05ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 119.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:37:02,424 INFO L158 Benchmark]: BuchiAutomizer took 958.98ms. Allocated memory is still 172.0MB. Free memory was 118.5MB in the beginning and 63.3MB in the end (delta: 55.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-12-13 12:37:02,425 INFO L158 Benchmark]: Witness Printer took 2.54ms. Allocated memory is still 172.0MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:37:02,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.71ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 129.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.96ms. Allocated memory is still 172.0MB. Free memory was 129.8MB in the beginning and 128.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.69ms. Allocated memory is still 172.0MB. Free memory was 128.4MB in the beginning and 127.7MB in the end (delta: 658.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 178.05ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 119.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 958.98ms. Allocated memory is still 172.0MB. Free memory was 118.5MB in the beginning and 63.3MB in the end (delta: 55.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 2.54ms. Allocated memory is still 172.0MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if 2 * y + 1 > 0 then 1 else 0), (if 2 * y + 1 > 0 then 2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 13 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 12:37:02,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-12-13 12:37:02,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae874b7-c52e-4cd7-8bac-644e09c35404/bin/uautomizer-uyxdKDjOR8/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