./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/gcd01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/gcd01-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:06:19,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:19,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:19,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:19,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:19,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:19,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:19,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:19,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:19,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:19,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:19,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:19,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:19,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:19,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:19,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:19,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:19,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:19,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:19,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:19,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:19,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:19,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:19,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:19,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:19,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:19,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:19,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:19,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:19,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:19,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:19,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:19,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:19,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:19,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:19,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:19,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:19,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:19,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:19,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:19,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:19,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:06:19,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:19,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:19,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:19,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:19,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:19,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:19,236 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:19,236 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:06:19,236 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:06:19,236 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:06:19,236 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:06:19,237 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:06:19,237 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:06:19,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:19,237 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:06:19,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:06:19,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:06:19,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:06:19,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:19,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:06:19,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:06:19,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:06:19,242 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:06:19,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:19,243 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:06:19,243 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:19,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:06:19,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:19,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:19,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:19,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:06:19,248 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:06:19,248 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_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 [2022-11-20 11:06:19,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:19,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:19,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:19,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:19,627 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:19,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/recursive/gcd01-1.c [2022-11-20 11:06:23,425 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:23,661 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:23,662 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/sv-benchmarks/c/recursive/gcd01-1.c [2022-11-20 11:06:23,671 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/data/842fb0a63/3000de49b1184694b8afbd6d654eb899/FLAGacf0299bf [2022-11-20 11:06:23,691 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/data/842fb0a63/3000de49b1184694b8afbd6d654eb899 [2022-11-20 11:06:23,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:23,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:23,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:23,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:23,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:23,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:23" (1/1) ... [2022-11-20 11:06:23,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b86f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:23, skipping insertion in model container [2022-11-20 11:06:23,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:23" (1/1) ... [2022-11-20 11:06:23,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:23,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:23,952 WARN L237 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_54d77221-8eaa-4959-a782-99a28e352b61/sv-benchmarks/c/recursive/gcd01-1.c[1008,1021] [2022-11-20 11:06:23,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:23,969 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:06:23,989 WARN L237 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_54d77221-8eaa-4959-a782-99a28e352b61/sv-benchmarks/c/recursive/gcd01-1.c[1008,1021] [2022-11-20 11:06:23,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:24,007 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:06:24,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24 WrapperNode [2022-11-20 11:06:24,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:24,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:24,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:06:24,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:06:24,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,048 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-11-20 11:06:24,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:24,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:06:24,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:06:24,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:06:24,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:06:24,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:06:24,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:06:24,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:06:24,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (1/1) ... [2022-11-20 11:06:24,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:24,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:24,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:24,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:06:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:06:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2022-11-20 11:06:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2022-11-20 11:06:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:06:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:06:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:06:24,261 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:06:24,264 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:06:24,420 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:06:24,428 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:06:24,428 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:06:24,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:24 BoogieIcfgContainer [2022-11-20 11:06:24,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:06:24,433 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:06:24,433 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:06:24,439 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:06:24,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:06:24,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:06:23" (1/3) ... [2022-11-20 11:06:24,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f65d3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:06:24, skipping insertion in model container [2022-11-20 11:06:24,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:06:24,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:24" (2/3) ... [2022-11-20 11:06:24,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f65d3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:06:24, skipping insertion in model container [2022-11-20 11:06:24,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:06:24,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:24" (3/3) ... [2022-11-20 11:06:24,445 INFO L332 chiAutomizerObserver]: Analyzing ICFG gcd01-1.c [2022-11-20 11:06:24,521 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:06:24,521 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:06:24,521 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:06:24,522 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:06:24,522 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:06:24,522 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:06:24,522 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:06:24,523 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:06:24,528 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) [2022-11-20 11:06:24,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 11:06:24,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:06:24,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:06:24,559 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 11:06:24,559 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 11:06:24,559 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:06:24,559 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) [2022-11-20 11:06:24,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 11:06:24,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:06:24,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:06:24,564 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 11:06:24,564 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 11:06:24,573 INFO L748 eck$LassoCheckResult]: Stem: 3#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); 9#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; 10#L32true assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 11#L36true assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647); 21#L39true call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 22#gcdENTRYtrue [2022-11-20 11:06:24,574 INFO L750 eck$LassoCheckResult]: Loop: 22#gcdENTRYtrue ~y1 := #in~y1;~y2 := #in~y2; 6#L18true assume !(~y1 <= 0 || ~y2 <= 0); 12#L21true assume !(~y1 == ~y2); 18#L24true assume !(~y1 > ~y2); 17#L27true call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 22#gcdENTRYtrue [2022-11-20 11:06:24,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:24,581 INFO L85 PathProgramCache]: Analyzing trace with hash 45873351, now seen corresponding path program 1 times [2022-11-20 11:06:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:24,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497044824] [2022-11-20 11:06:24,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:24,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:24,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:24,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:24,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:24,761 INFO L85 PathProgramCache]: Analyzing trace with hash 28756482, now seen corresponding path program 1 times [2022-11-20 11:06:24,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:24,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276885631] [2022-11-20 11:06:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:24,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:24,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:24,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash -6988548, now seen corresponding path program 1 times [2022-11-20 11:06:24,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:24,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302917533] [2022-11-20 11:06:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:24,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:24,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:25,094 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:06:25,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:06:25,096 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:06:25,096 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:06:25,096 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:06:25,096 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:25,097 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:06:25,097 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:06:25,097 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration1_Loop [2022-11-20 11:06:25,097 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:06:25,098 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:06:25,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,163 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,177 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,240 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,244 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,374 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:06:25,379 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:06:25,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:25,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:25,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:25,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 11:06:25,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:25,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:25,428 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:06:25,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:06:25,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:25,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:25,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:25,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:25,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 11:06:25,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:25,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:25,478 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:06:25,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:06:25,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:25,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:25,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:25,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:25,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:25,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:25,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 11:06:25,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:25,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:25,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:25,537 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:25,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:06:25,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:25,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 11:06:25,796 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:06:25,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-20 11:06:25,805 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:06:25,806 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:06:25,806 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:06:25,806 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:06:25,806 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:06:25,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:25,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:06:25,806 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:06:25,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration1_Loop [2022-11-20 11:06:25,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:06:25,807 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:06:25,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,856 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:25,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:06:25,979 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:06:25,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:25,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:25,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:25,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:26,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 11:06:26,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:26,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:26,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:26,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:26,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:26,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:26,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:26,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:06:26,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:26,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:26,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:26,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:26,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:26,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 11:06:26,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:26,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:26,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:26,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:26,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:26,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:26,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:26,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:06:26,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:26,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:26,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:26,107 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:26,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:26,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 11:06:26,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:26,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:26,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:26,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:26,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:26,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:26,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:26,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:06:26,187 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:06:26,187 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:06:26,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:26,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:26,215 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:26,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:06:26,223 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:06:26,223 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:06:26,224 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] [2022-11-20 11:06:26,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 11:06:26,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:26,235 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:06:26,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:26,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:06:26,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:26,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:06:26,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:26,572 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 11:06:26,575 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) [2022-11-20 11:06:26,811 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. [2022-11-20 11:06:26,815 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 [2022-11-20 11:06:26,822 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) [2022-11-20 11:06:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2022-11-20 11:06:26,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 5 letters. [2022-11-20 11:06:26,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:26,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 5 letters. [2022-11-20 11:06:26,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:26,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 10 letters. [2022-11-20 11:06:26,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:26,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 98 transitions. [2022-11-20 11:06:26,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 11:06:26,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 28 states and 32 transitions. [2022-11-20 11:06:26,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 11:06:26,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-20 11:06:26,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2022-11-20 11:06:26,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:06:26,849 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-20 11:06:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2022-11-20 11:06:26,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2022-11-20 11:06:26,879 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) [2022-11-20 11:06:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-11-20 11:06:26,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 11:06:26,882 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 11:06:26,882 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:06:26,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2022-11-20 11:06:26,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 11:06:26,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:06:26,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:06:26,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:06:26,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 11:06:26,885 INFO L748 eck$LassoCheckResult]: Stem: 164#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); 165#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; 179#L32 assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 180#L36 assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647); 169#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 181#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 172#L18 [2022-11-20 11:06:26,885 INFO L750 eck$LassoCheckResult]: Loop: 172#L18 assume !(~y1 <= 0 || ~y2 <= 0); 173#L21 assume !(~y1 == ~y2); 177#L24 assume ~y1 > ~y2; 166#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 168#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 172#L18 [2022-11-20 11:06:26,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1422073881, now seen corresponding path program 1 times [2022-11-20 11:06:26,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:26,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5629801] [2022-11-20 11:06:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:26,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:26,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:26,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:26,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:26,913 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 1 times [2022-11-20 11:06:26,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:26,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745268451] [2022-11-20 11:06:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:26,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:26,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:26,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:26,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:26,933 INFO L85 PathProgramCache]: Analyzing trace with hash -216647933, now seen corresponding path program 1 times [2022-11-20 11:06:26,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:26,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962348484] [2022-11-20 11:06:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:26,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:26,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:27,105 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:06:27,105 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:06:27,105 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:06:27,105 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:06:27,106 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:06:27,106 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:27,106 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:06:27,106 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:06:27,106 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration2_Loop [2022-11-20 11:06:27,107 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:06:27,107 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:06:27,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:27,112 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:27,116 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:27,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:27,211 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:06:27,212 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:06:27,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:27,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:27,214 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:27,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 11:06:27,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:27,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:27,253 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:06:27,253 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:06:27,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:27,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:27,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:27,265 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:27,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:27,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:27,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 11:06:27,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:06:27,302 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:06:27,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:27,318 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:27,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 11:06:27,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:27,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:27,353 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:06:27,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:06:27,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:27,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:27,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:27,366 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:27,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:27,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:27,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 11:06:27,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:27,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:27,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:27,440 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:27,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 11:06:27,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:06:27,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:28,209 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:06:28,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:28,215 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:06:28,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:06:28,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:06:28,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:06:28,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:06:28,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:28,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:06:28,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:06:28,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration2_Loop [2022-11-20 11:06:28,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:06:28,216 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:06:28,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:28,226 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:28,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:28,238 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:28,323 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:06:28,323 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:06:28,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:28,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:28,325 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:28,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 11:06:28,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:28,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:28,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:28,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:28,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:28,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:28,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:28,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:28,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:06:28,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:28,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:28,379 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:28,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:28,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 11:06:28,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:28,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:28,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:28,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:28,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:28,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:28,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:28,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:06:28,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:28,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:28,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:28,426 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:28,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 11:06:28,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:28,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:28,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:28,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:28,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:28,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:28,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:28,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:28,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:06:28,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:28,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:28,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:28,484 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:28,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:28,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 11:06:28,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:28,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:28,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:28,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:28,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:28,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:28,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:28,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:06:28,552 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:06:28,552 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:06:28,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:28,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:28,555 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:28,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 11:06:28,559 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:06:28,559 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:06:28,559 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:06:28,559 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2022-11-20 11:06:28,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:28,571 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:06:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:28,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:06:28,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:28,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:06:28,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:28,791 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-20 11:06:28,792 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) [2022-11-20 11:06:28,836 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. [2022-11-20 11:06:28,838 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 [2022-11-20 11:06:28,839 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) [2022-11-20 11:06:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 11:06:28,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 5 letters. [2022-11-20 11:06:28,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:28,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 11:06:28,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:28,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 10 letters. [2022-11-20 11:06:28,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:28,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2022-11-20 11:06:28,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 11:06:28,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 33 states and 37 transitions. [2022-11-20 11:06:28,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-20 11:06:28,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-20 11:06:28,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2022-11-20 11:06:28,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:06:28,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-11-20 11:06:28,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2022-11-20 11:06:28,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2022-11-20 11:06:28,849 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) [2022-11-20 11:06:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-20 11:06:28,850 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-20 11:06:28,850 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-20 11:06:28,851 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 11:06:28,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2022-11-20 11:06:28,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 11:06:28,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:06:28,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:06:28,853 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:28,853 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 11:06:28,853 INFO L748 eck$LassoCheckResult]: Stem: 303#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); 304#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; 319#L32 assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 320#L36 assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647); 314#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 322#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 323#L18 assume !(~y1 <= 0 || ~y2 <= 0); 321#L21 assume !(~y1 == ~y2); 318#L24 assume !(~y1 > ~y2); 306#L27 call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 315#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 310#L18 [2022-11-20 11:06:28,853 INFO L750 eck$LassoCheckResult]: Loop: 310#L18 assume !(~y1 <= 0 || ~y2 <= 0); 311#L21 assume !(~y1 == ~y2); 317#L24 assume ~y1 > ~y2; 305#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 307#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 310#L18 [2022-11-20 11:06:28,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash -216644988, now seen corresponding path program 2 times [2022-11-20 11:06:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:28,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072281177] [2022-11-20 11:06:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:28,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:28,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:28,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:28,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:28,914 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 2 times [2022-11-20 11:06:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:28,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:28,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595826499] [2022-11-20 11:06:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:28,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:28,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:28,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:28,931 INFO L85 PathProgramCache]: Analyzing trace with hash 201252728, now seen corresponding path program 1 times [2022-11-20 11:06:28,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:28,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666912137] [2022-11-20 11:06:28,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:28,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:28,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:28,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:29,130 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:06:29,131 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:06:29,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:06:29,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:06:29,131 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:06:29,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:29,132 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:06:29,132 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:06:29,132 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration3_Loop [2022-11-20 11:06:29,132 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:06:29,132 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:06:29,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:29,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:29,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:29,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:29,229 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:06:29,229 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:06:29,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:29,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:29,240 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:29,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:06:29,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:29,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 11:06:29,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:29,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:29,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:29,292 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:29,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 11:06:29,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:06:29,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:06:29,933 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:06:29,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:29,940 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:06:29,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:06:29,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:06:29,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:06:29,940 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:06:29,940 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:29,940 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:06:29,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:06:29,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration3_Loop [2022-11-20 11:06:29,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:06:29,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:06:29,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:29,952 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:29,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:29,973 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:06:30,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:06:30,042 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:06:30,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:30,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:30,047 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:30,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:30,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 11:06:30,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:30,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:30,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:30,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:30,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:30,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:30,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:30,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:06:30,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:30,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:30,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:30,093 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:30,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:30,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 11:06:30,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:30,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:30,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:30,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:30,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:30,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:30,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:30,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:06:30,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:30,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:30,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:30,142 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:30,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:06:30,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 11:06:30,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:06:30,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:06:30,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:06:30,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:06:30,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:06:30,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:06:30,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:06:30,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:06:30,202 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:06:30,203 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:06:30,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:06:30,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:30,205 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:30,209 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:06:30,210 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:06:30,210 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:06:30,210 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2022-11-20 11:06:30,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 11:06:30,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:30,219 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:06:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:30,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:06:30,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:30,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:06:30,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:30,426 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-20 11:06:30,426 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) [2022-11-20 11:06:30,476 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. [2022-11-20 11:06:30,477 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 [2022-11-20 11:06:30,479 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) [2022-11-20 11:06:30,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 11:06:30,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 11:06:30,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:30,481 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 11:06:30,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:30,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:06:30,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:30,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:06:30,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:30,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:30,653 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-20 11:06:30,653 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) [2022-11-20 11:06:30,690 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. [2022-11-20 11:06:30,691 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 [2022-11-20 11:06:30,692 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) [2022-11-20 11:06:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 11:06:30,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 11:06:30,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:30,693 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 11:06:30,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:30,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:06:30,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:30,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:06:30,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:30,867 INFO L141 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 [2022-11-20 11:06:30,868 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) [2022-11-20 11:06:30,918 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. [2022-11-20 11:06:30,919 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 [2022-11-20 11:06:30,922 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) [2022-11-20 11:06:30,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-11-20 11:06:30,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 11:06:30,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:30,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 5 letters. [2022-11-20 11:06:30,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:30,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 10 letters. [2022-11-20 11:06:30,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:06:30,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 86 transitions. [2022-11-20 11:06:30,937 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:06:30,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2022-11-20 11:06:30,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 11:06:30,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 11:06:30,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 11:06:30,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:30,939 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:06:30,939 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:06:30,939 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:06:30,939 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 11:06:30,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:06:30,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:06:30,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 11:06:30,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:06:30 BoogieIcfgContainer [2022-11-20 11:06:30,953 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:06:30,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:06:30,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:06:30,954 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:06:30,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:24" (3/4) ... [2022-11-20 11:06:30,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:06:30,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:06:30,960 INFO L158 Benchmark]: Toolchain (without parser) took 7262.60ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 127.6MB in the beginning and 110.6MB in the end (delta: 17.0MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2022-11-20 11:06:30,960 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:06:30,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.17ms. Allocated memory is still 172.0MB. Free memory was 127.6MB in the beginning and 117.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:06:30,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.21ms. Allocated memory is still 172.0MB. Free memory was 117.2MB in the beginning and 115.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:06:30,970 INFO L158 Benchmark]: Boogie Preprocessor took 22.14ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 115.1MB in the end (delta: 680.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:06:30,973 INFO L158 Benchmark]: RCFGBuilder took 359.06ms. Allocated memory is still 172.0MB. Free memory was 115.1MB in the beginning and 104.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:06:30,974 INFO L158 Benchmark]: BuchiAutomizer took 6520.35ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 104.6MB in the beginning and 110.6MB in the end (delta: -6.0MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2022-11-20 11:06:30,975 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 207.6MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:06:30,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.17ms. Allocated memory is still 172.0MB. Free memory was 127.6MB in the beginning and 117.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.21ms. Allocated memory is still 172.0MB. Free memory was 117.2MB in the beginning and 115.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.14ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 115.1MB in the end (delta: 680.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 359.06ms. Allocated memory is still 172.0MB. Free memory was 115.1MB in the beginning and 104.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 6520.35ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 104.6MB in the beginning and 110.6MB in the end (delta: -6.0MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 207.6MB. Free memory is still 110.6MB. 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 6.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 4.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 52 mSDtfsCounter, 129 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 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp92 dnf100 smp100 tf106 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 11:06:30,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:31,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d77221-8eaa-4959-a782-99a28e352b61/bin/uautomizer-ug76WZFUDN/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