./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/gcd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/gcd01-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:12:06,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:12:06,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:12:06,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:12:06,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:12:06,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:12:06,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:12:06,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:12:06,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:12:06,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:12:06,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:12:06,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:12:06,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:12:06,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:12:06,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:12:06,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:12:06,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:12:06,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:12:06,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:12:06,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:12:06,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:12:06,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:12:06,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:12:06,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:12:06,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:12:06,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:12:06,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:12:06,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:12:06,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:12:06,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:12:06,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:12:06,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:12:06,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:12:06,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:12:06,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:12:06,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:12:06,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:12:06,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:12:06,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:12:06,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:12:06,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:12:06,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:12:06,289 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:12:06,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:12:06,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:12:06,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:12:06,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:12:06,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:12:06,292 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:12:06,293 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:12:06,293 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:12:06,293 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:12:06,294 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:12:06,294 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:12:06,295 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:12:06,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:12:06,295 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:12:06,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:12:06,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:12:06,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:12:06,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:12:06,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:12:06,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:12:06,297 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:12:06,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:12:06,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:12:06,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:12:06,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:12:06,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:12:06,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:12:06,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:12:06,301 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:12:06,301 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_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb [2021-11-19 04:12:06,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:12:06,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:12:06,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:12:06,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:12:06,612 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:12:06,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-numeric/gcd01-2.c [2021-11-19 04:12:06,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/data/0560986f1/69343d9bc1234e029e59b35def3cbe7b/FLAG903e2b516 [2021-11-19 04:12:07,091 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:12:07,092 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/sv-benchmarks/c/termination-numeric/gcd01-2.c [2021-11-19 04:12:07,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/data/0560986f1/69343d9bc1234e029e59b35def3cbe7b/FLAG903e2b516 [2021-11-19 04:12:07,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/data/0560986f1/69343d9bc1234e029e59b35def3cbe7b [2021-11-19 04:12:07,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:12:07,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:12:07,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:12:07,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:12:07,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:12:07,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2116d31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07, skipping insertion in model container [2021-11-19 04:12:07,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:12:07,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:12:07,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2021-11-19 04:12:07,712 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:12:07,721 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:12:07,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2021-11-19 04:12:07,735 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:12:07,746 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:12:07,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07 WrapperNode [2021-11-19 04:12:07,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:12:07,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:12:07,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:12:07,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:12:07,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,782 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2021-11-19 04:12:07,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:12:07,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:12:07,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:12:07,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:12:07,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:12:07,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:12:07,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:12:07,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:12:07,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2021-11-19 04:12:07,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:07,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:07,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:12:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:12:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2021-11-19 04:12:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2021-11-19 04:12:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:12:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:12:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:12:07,972 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:12:07,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:12:08,132 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:12:08,151 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:12:08,152 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 04:12:08,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:08 BoogieIcfgContainer [2021-11-19 04:12:08,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:12:08,155 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:12:08,155 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:12:08,161 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:12:08,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:12:08,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:12:07" (1/3) ... [2021-11-19 04:12:08,179 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27b49e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:12:08, skipping insertion in model container [2021-11-19 04:12:08,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:12:08,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (2/3) ... [2021-11-19 04:12:08,179 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27b49e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:12:08, skipping insertion in model container [2021-11-19 04:12:08,180 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:12:08,180 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:08" (3/3) ... [2021-11-19 04:12:08,181 INFO L388 chiAutomizerObserver]: Analyzing ICFG gcd01-2.c [2021-11-19 04:12:08,224 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:12:08,224 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:12:08,224 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:12:08,225 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:12:08,225 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:12:08,225 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:12:08,225 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:12:08,225 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:12:08,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:12:08,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-19 04:12:08,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:12:08,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:12:08,271 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-19 04:12:08,271 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-19 04:12:08,272 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:12:08,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:12:08,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-19 04:12:08,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:12:08,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:12:08,278 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-19 04:12:08,278 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-19 04:12:08,284 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 11#L32true assume !(main_~m~0#1 <= 0);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 12#L36true assume !(main_~n~0#1 <= 0); 22#L39true call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 23#gcdENTRYtrue [2021-11-19 04:12:08,285 INFO L793 eck$LassoCheckResult]: Loop: 23#gcdENTRYtrue ~y1 := #in~y1;~y2 := #in~y2; 7#L18true assume !(~y1 <= 0 || ~y2 <= 0); 13#L21true assume !(~y1 == ~y2); 19#L24true assume !(~y1 > ~y2); 18#L27true call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 23#gcdENTRYtrue [2021-11-19 04:12:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:08,291 INFO L85 PathProgramCache]: Analyzing trace with hash 45873351, now seen corresponding path program 1 times [2021-11-19 04:12:08,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:08,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784313538] [2021-11-19 04:12:08,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:08,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:08,435 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:08,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:08,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash 28756482, now seen corresponding path program 1 times [2021-11-19 04:12:08,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:08,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846071233] [2021-11-19 04:12:08,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:08,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:08,509 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:08,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:08,532 INFO L85 PathProgramCache]: Analyzing trace with hash -6988548, now seen corresponding path program 1 times [2021-11-19 04:12:08,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:08,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900421533] [2021-11-19 04:12:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:08,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:08,563 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:08,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:08,857 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:12:08,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:12:08,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:12:08,858 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:12:08,858 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:12:08,858 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:08,858 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:12:08,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:12:08,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2021-11-19 04:12:08,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:12:08,859 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:12:08,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:08,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:08,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:08,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:08,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:08,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:08,994 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:12:08,995 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:12:08,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:08,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:12:09,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:09,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:12:09,042 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:12:09,042 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:12:09,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:12:09,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:09,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:12:09,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:12:09,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:12:09,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:12:09,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:09,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:12:09,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:12:09,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:09,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:12:09,318 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:12:09,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,323 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:12:09,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:12:09,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:12:09,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:12:09,323 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:12:09,324 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:12:09,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:12:09,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2021-11-19 04:12:09,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:12:09,324 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:12:09,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:09,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:09,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:09,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:09,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:09,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:09,437 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:12:09,442 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:12:09,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:12:09,466 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 [2021-11-19 04:12:09,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:09,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:09,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:09,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:09,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:09,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:09,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:09,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:12:09,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,530 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,536 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 [2021-11-19 04:12:09,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:09,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:09,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:09,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:09,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:09,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:09,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:09,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:12:09,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:12:09,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:12:09,659 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 [2021-11-19 04:12:09,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:09,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:09,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:09,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:09,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:09,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:09,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:09,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:12:09,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-19 04:12:09,707 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 [2021-11-19 04:12:09,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:09,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:09,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:09,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:09,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:09,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:09,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:09,726 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:12:09,731 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-19 04:12:09,731 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-19 04:12:09,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:09,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:09,735 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:09,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 04:12:09,766 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:12:09,767 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:12:09,767 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:12:09,767 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] [2021-11-19 04:12:09,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,793 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:12:09,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:09,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:09,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:12:09,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:09,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:12:09,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:12:10,127 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-19 04:12:10,128 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:10,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 98 transitions. Complement of second has 18 states. [2021-11-19 04:12:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-11-19 04:12:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:10,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2021-11-19 04:12:10,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 5 letters. [2021-11-19 04:12:10,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:10,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 5 letters. [2021-11-19 04:12:10,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:10,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 10 letters. [2021-11-19 04:12:10,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:10,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 98 transitions. [2021-11-19 04:12:10,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-19 04:12:10,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 28 states and 32 transitions. [2021-11-19 04:12:10,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-19 04:12:10,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-19 04:12:10,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2021-11-19 04:12:10,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:12:10,364 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-11-19 04:12:10,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2021-11-19 04:12:10,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2021-11-19 04:12:10,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-11-19 04:12:10,395 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-19 04:12:10,396 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-19 04:12:10,396 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:12:10,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-11-19 04:12:10,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-19 04:12:10,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:12:10,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:12:10,400 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-19 04:12:10,407 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-19 04:12:10,408 INFO L791 eck$LassoCheckResult]: Stem: 165#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 166#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 180#L32 assume !(main_~m~0#1 <= 0);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 181#L36 assume !(main_~n~0#1 <= 0); 170#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 182#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 173#L18 [2021-11-19 04:12:10,408 INFO L793 eck$LassoCheckResult]: Loop: 173#L18 assume !(~y1 <= 0 || ~y2 <= 0); 174#L21 assume !(~y1 == ~y2); 178#L24 assume ~y1 > ~y2; 167#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 169#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 173#L18 [2021-11-19 04:12:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:10,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1422073881, now seen corresponding path program 1 times [2021-11-19 04:12:10,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:10,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906062826] [2021-11-19 04:12:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:10,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:10,422 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:10,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:10,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:10,442 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 1 times [2021-11-19 04:12:10,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:10,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119503700] [2021-11-19 04:12:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:10,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:10,448 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:10,455 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:10,456 INFO L85 PathProgramCache]: Analyzing trace with hash -216647933, now seen corresponding path program 1 times [2021-11-19 04:12:10,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:10,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028627324] [2021-11-19 04:12:10,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:10,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:10,467 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:10,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:10,570 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:12:10,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:12:10,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:12:10,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:12:10,571 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:12:10,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:10,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:12:10,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:12:10,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2021-11-19 04:12:10,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:12:10,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:12:10,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:10,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:10,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:10,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:10,646 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:12:10,646 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:12:10,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:10,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:10,647 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:10,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:12:10,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:10,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 04:12:10,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:10,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:10,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:10,723 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:10,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 04:12:10,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:12:10,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:12,918 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:12:12,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:12,925 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:12:12,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:12:12,925 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:12:12,925 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:12:12,925 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:12:12,925 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:12,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:12:12,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:12:12,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2021-11-19 04:12:12,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:12:12,926 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:12:12,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:12,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:12,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:12,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:13,005 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:12:13,005 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:12:13,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:13,018 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 [2021-11-19 04:12:13,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:13,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:13,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:13,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:13,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:13,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:13,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:13,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-19 04:12:13,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:12:13,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:13,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,063 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:13,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-19 04:12:13,064 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 [2021-11-19 04:12:13,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:13,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:13,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:13,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:13,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:13,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:13,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:13,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:12:13,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:13,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,121 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:13,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-19 04:12:13,122 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 [2021-11-19 04:12:13,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:13,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:13,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:13,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:13,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:13,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:13,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:13,162 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:12:13,169 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-19 04:12:13,169 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-19 04:12:13,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,174 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:13,176 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:12:13,176 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:12:13,177 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:12:13,177 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2021-11-19 04:12:13,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-19 04:12:13,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:13,215 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:12:13,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:13,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:12:13,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:13,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:12:13,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:12:13,392 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-19 04:12:13,392 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:13,444 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 61 transitions. Complement of second has 15 states. [2021-11-19 04:12:13,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-19 04:12:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:13,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-11-19 04:12:13,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 5 letters. [2021-11-19 04:12:13,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:13,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2021-11-19 04:12:13,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:13,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 10 letters. [2021-11-19 04:12:13,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:13,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2021-11-19 04:12:13,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-19 04:12:13,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 33 states and 37 transitions. [2021-11-19 04:12:13,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-19 04:12:13,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-19 04:12:13,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2021-11-19 04:12:13,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:12:13,459 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-11-19 04:12:13,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2021-11-19 04:12:13,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2021-11-19 04:12:13,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:13,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-11-19 04:12:13,465 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-11-19 04:12:13,465 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-11-19 04:12:13,465 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-19 04:12:13,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2021-11-19 04:12:13,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-19 04:12:13,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:12:13,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:12:13,467 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:12:13,467 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-19 04:12:13,468 INFO L791 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 306#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 321#L32 assume !(main_~m~0#1 <= 0);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 322#L36 assume !(main_~n~0#1 <= 0); 316#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 324#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 325#L18 assume !(~y1 <= 0 || ~y2 <= 0); 323#L21 assume !(~y1 == ~y2); 320#L24 assume !(~y1 > ~y2); 308#L27 call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 317#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 312#L18 [2021-11-19 04:12:13,468 INFO L793 eck$LassoCheckResult]: Loop: 312#L18 assume !(~y1 <= 0 || ~y2 <= 0); 313#L21 assume !(~y1 == ~y2); 319#L24 assume ~y1 > ~y2; 307#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 309#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 312#L18 [2021-11-19 04:12:13,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:13,468 INFO L85 PathProgramCache]: Analyzing trace with hash -216644988, now seen corresponding path program 2 times [2021-11-19 04:12:13,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:13,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086351936] [2021-11-19 04:12:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:13,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:13,495 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:13,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:13,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:13,521 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 2 times [2021-11-19 04:12:13,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:13,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192116633] [2021-11-19 04:12:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:13,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:13,525 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:13,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:13,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:13,538 INFO L85 PathProgramCache]: Analyzing trace with hash 201252728, now seen corresponding path program 1 times [2021-11-19 04:12:13,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:12:13,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261408246] [2021-11-19 04:12:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:12:13,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:12:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:13,551 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:12:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:12:13,586 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:12:13,709 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:12:13,709 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:12:13,710 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:12:13,710 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:12:13,711 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:12:13,711 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,711 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:12:13,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:12:13,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2021-11-19 04:12:13,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:12:13,712 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:12:13,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:13,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:13,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:13,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:13,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:13,787 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:12:13,787 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:12:13,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,790 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:13,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:12:13,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:13,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-19 04:12:13,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:12:13,825 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:12:13,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:13,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,852 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:13,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-19 04:12:13,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:12:13,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:13,877 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:12:13,877 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:12:13,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:13,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,920 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:13,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:12:13,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:13,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-19 04:12:13,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:13,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:13,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:13,992 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:14,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:12:14,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:12:14,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-19 04:12:16,228 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:12:16,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:16,232 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:12:16,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:12:16,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:12:16,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:12:16,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:12:16,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:16,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:12:16,232 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:12:16,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2021-11-19 04:12:16,233 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:12:16,233 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:12:16,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:16,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:16,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:16,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:12:16,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:12:16,306 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:12:16,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:16,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:16,308 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:16,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-19 04:12:16,315 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 [2021-11-19 04:12:16,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:16,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:16,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:16,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:16,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:16,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:16,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:16,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:12:16,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:16,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:16,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:16,380 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:16,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-19 04:12:16,382 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 [2021-11-19 04:12:16,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:16,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:16,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:16,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:16,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:16,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:16,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:16,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:12:16,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:16,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:16,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:16,441 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:16,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-19 04:12:16,442 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 [2021-11-19 04:12:16,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:12:16,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:12:16,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:12:16,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:12:16,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:12:16,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:12:16,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:12:16,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:12:16,460 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-19 04:12:16,460 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-19 04:12:16,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:12:16,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:12:16,461 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:12:16,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-19 04:12:16,463 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:12:16,463 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:12:16,463 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:12:16,463 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2021-11-19 04:12:16,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-19 04:12:16,483 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:12:16,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:16,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:12:16,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:16,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:12:16,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:12:16,653 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-19 04:12:16,654 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:16,682 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2021-11-19 04:12:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-19 04:12:16,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-11-19 04:12:16,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2021-11-19 04:12:16,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:16,686 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-19 04:12:16,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:16,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:12:16,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:16,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:12:16,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:16,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:12:16,836 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-19 04:12:16,836 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:16,865 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2021-11-19 04:12:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-19 04:12:16,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:16,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-11-19 04:12:16,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2021-11-19 04:12:16,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:16,867 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-19 04:12:16,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:12:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:16,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:12:16,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:12:16,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:12:16,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:12:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:12:17,007 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-19 04:12:17,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:17,051 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 86 transitions. Complement of second has 17 states. [2021-11-19 04:12:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-19 04:12:17,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:12:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-11-19 04:12:17,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 5 letters. [2021-11-19 04:12:17,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:17,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 5 letters. [2021-11-19 04:12:17,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:17,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 10 letters. [2021-11-19 04:12:17,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:12:17,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 86 transitions. [2021-11-19 04:12:17,066 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:12:17,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2021-11-19 04:12:17,067 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:12:17,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:12:17,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:12:17,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:12:17,067 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:12:17,067 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:12:17,067 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:12:17,067 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-19 04:12:17,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:12:17,068 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:12:17,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:12:17,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:12:17 BoogieIcfgContainer [2021-11-19 04:12:17,079 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:12:17,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:12:17,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:12:17,080 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:12:17,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:08" (3/4) ... [2021-11-19 04:12:17,084 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:12:17,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:12:17,085 INFO L158 Benchmark]: Toolchain (without parser) took 9595.11ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 91.3MB in the beginning and 90.3MB in the end (delta: 1.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-11-19 04:12:17,085 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 108.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:12:17,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.10ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 107.5MB in the end (delta: -16.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:12:17,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.25ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 105.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:12:17,096 INFO L158 Benchmark]: Boogie Preprocessor took 19.66ms. Allocated memory is still 132.1MB. Free memory was 105.9MB in the beginning and 104.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:12:17,097 INFO L158 Benchmark]: RCFGBuilder took 350.04ms. Allocated memory is still 132.1MB. Free memory was 104.8MB in the beginning and 95.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:12:17,097 INFO L158 Benchmark]: BuchiAutomizer took 8924.57ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 95.5MB in the beginning and 90.3MB in the end (delta: 5.2MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2021-11-19 04:12:17,098 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 174.1MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:12:17,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 108.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.10ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 107.5MB in the end (delta: -16.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.25ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 105.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.66ms. Allocated memory is still 132.1MB. Free memory was 105.9MB in the beginning and 104.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 350.04ms. Allocated memory is still 132.1MB. Free memory was 104.8MB in the beginning and 95.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 8924.57ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 95.5MB in the beginning and 90.3MB in the end (delta: 5.2MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 174.1MB. Free memory is still 90.3MB. 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(y2) and consists of 6 locations. One deterministic module has affine ranking function y1 and consists of 5 locations. One nondeterministic module has affine ranking function y1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 7.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 52 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf96 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq177 hnf91 smp92 dnf100 smp100 tf106 neg98 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:12:17,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-19 04:12:17,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6fd4037-c7c1-45b6-9530-04dc2301c1ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE