./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/gcd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/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_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/gcd01-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/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 64bit --witnessprinter.graph.data.programhash 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb --- 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 10:34:54,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:34:54,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:34:55,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:34:55,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:34:55,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:34:55,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:34:55,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:34:55,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:34:55,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:34:55,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:34:55,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:34:55,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:34:55,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:34:55,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:34:55,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:34:55,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:34:55,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:34:55,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:34:55,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:34:55,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:34:55,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:34:55,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:34:55,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:34:55,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:34:55,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:34:55,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:34:55,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:34:55,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:34:55,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:34:55,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:34:55,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:34:55,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:34:55,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:34:55,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:34:55,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:34:55,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:34:55,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:34:55,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:34:55,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:34:55,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:34:55,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 10:34:55,104 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:34:55,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:34:55,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:34:55,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:34:55,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:34:55,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:34:55,107 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:34:55,107 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:34:55,108 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:34:55,108 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:34:55,108 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:34:55,108 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:34:55,109 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:34:55,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:34:55,109 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:34:55,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:34:55,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:34:55,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:34:55,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:34:55,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:34:55,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:34:55,111 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:34:55,111 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:34:55,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:34:55,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:34:55,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:34:55,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:34:55,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:34:55,113 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:34:55,114 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_5411d864-56b5-47ac-bc65-016a8b6397b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb [2022-11-20 10:34:55,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:34:55,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:34:55,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:34:55,454 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:34:55,456 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:34:55,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-numeric/gcd01-2.c [2022-11-20 10:34:58,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:34:58,830 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:34:58,830 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/sv-benchmarks/c/termination-numeric/gcd01-2.c [2022-11-20 10:34:58,837 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/data/2fcd3a750/3988646a1502421fa0fbf9574a24ba59/FLAGe387e18b7 [2022-11-20 10:34:58,862 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/data/2fcd3a750/3988646a1502421fa0fbf9574a24ba59 [2022-11-20 10:34:58,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:34:58,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:34:58,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:58,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:34:58,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:34:58,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:58" (1/1) ... [2022-11-20 10:34:58,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1defbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:58, skipping insertion in model container [2022-11-20 10:34:58,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:58" (1/1) ... [2022-11-20 10:34:58,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:34:58,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:34:59,094 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_5411d864-56b5-47ac-bc65-016a8b6397b5/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2022-11-20 10:34:59,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:59,110 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:34:59,127 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_5411d864-56b5-47ac-bc65-016a8b6397b5/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2022-11-20 10:34:59,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:59,143 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:34:59,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59 WrapperNode [2022-11-20 10:34:59,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:59,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:59,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:34:59,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:34:59,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,182 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-11-20 10:34:59,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:59,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:34:59,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:34:59,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:34:59,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,217 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:34:59,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:34:59,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:34:59,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:34:59,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (1/1) ... [2022-11-20 10:34:59,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:34:59,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:34:59,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:34:59,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:34:59,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:34:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2022-11-20 10:34:59,340 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2022-11-20 10:34:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:34:59,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:34:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:34:59,426 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:34:59,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:34:59,604 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:34:59,609 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:34:59,610 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:34:59,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:59 BoogieIcfgContainer [2022-11-20 10:34:59,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:34:59,617 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:34:59,617 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:34:59,625 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:34:59,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:34:59,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:34:58" (1/3) ... [2022-11-20 10:34:59,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@308b0ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:34:59, skipping insertion in model container [2022-11-20 10:34:59,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:34:59,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:59" (2/3) ... [2022-11-20 10:34:59,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@308b0ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:34:59, skipping insertion in model container [2022-11-20 10:34:59,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:34:59,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:59" (3/3) ... [2022-11-20 10:34:59,644 INFO L332 chiAutomizerObserver]: Analyzing ICFG gcd01-2.c [2022-11-20 10:34:59,763 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:34:59,763 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:34:59,763 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:34:59,764 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:34:59,764 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:34:59,764 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:34:59,764 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:34:59,764 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:34:59,770 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 10:34:59,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 10:34:59,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:34:59,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:34:59,808 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 10:34:59,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 10:34:59,808 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:34:59,809 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 10:34:59,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 10:34:59,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:34:59,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:34:59,812 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 10:34:59,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 10:34:59,820 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_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 11#L36true assume !(main_~n~0#1 <= 0); 21#L39true call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 22#gcdENTRYtrue [2022-11-20 10:34:59,821 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 10:34:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:59,827 INFO L85 PathProgramCache]: Analyzing trace with hash 45873351, now seen corresponding path program 1 times [2022-11-20 10:34:59,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:59,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617117771] [2022-11-20 10:34:59,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:59,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:34:59,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:34:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:34:59,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:34:59,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:59,967 INFO L85 PathProgramCache]: Analyzing trace with hash 28756482, now seen corresponding path program 1 times [2022-11-20 10:34:59,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:59,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268204270] [2022-11-20 10:34:59,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:59,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:34:59,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:34:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:34:59,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:34:59,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash -6988548, now seen corresponding path program 1 times [2022-11-20 10:34:59,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:59,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208406921] [2022-11-20 10:34:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:59,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:00,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:35:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:00,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:35:00,339 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:35:00,340 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:35:00,340 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:35:00,340 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:35:00,340 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:35:00,341 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:00,341 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:35:00,341 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:35:00,342 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2022-11-20 10:35:00,342 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:35:00,342 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:35:00,363 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 10:35:00,379 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 10:35:00,383 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 10:35:00,402 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 10:35:00,408 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 10:35:00,414 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 10:35:00,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:35:00,530 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:35:00,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:00,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:00,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:00,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:00,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:00,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 10:35:00,579 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:35:00,579 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 10:35:00,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:00,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:00,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:00,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:00,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:00,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:00,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 10:35:00,631 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:35:00,631 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 10:35:00,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:00,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:00,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:00,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:00,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:00,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:00,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 10:35:00,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:00,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:00,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:00,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:00,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:35:00,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:00,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 10:35:00,852 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:35:00,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:00,856 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:35:00,856 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:35:00,857 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:35:00,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:35:00,857 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:35:00,857 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:00,857 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:35:00,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:35:00,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2022-11-20 10:35:00,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:35:00,857 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:35:00,859 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 10:35:00,869 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 10:35:00,871 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 10:35:00,888 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 10:35:00,892 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 10:35:00,896 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 10:35:00,985 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:35:01,008 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:35:01,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:01,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:01,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:01,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 10:35:01,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 10:35:01,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:01,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:01,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:01,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:01,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:01,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:01,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:01,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:35:01,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:01,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:01,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:01,068 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:01,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 10:35:01,080 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 10:35:01,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:01,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:01,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:01,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:01,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:01,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:01,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:01,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:35:01,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:01,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:01,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:01,117 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:01,126 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 10:35:01,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:01,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:01,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:01,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:01,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:01,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 10:35:01,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:01,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:01,152 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:35:01,159 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:35:01,159 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:35:01,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:01,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:01,190 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:01,196 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:35:01,196 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:35:01,197 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:35:01,197 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] [2022-11-20 10:35:01,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 10:35:01,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:01,209 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:35:01,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:01,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:35:01,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:01,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:35:01,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:01,382 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 10:35:01,419 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 10:35:01,420 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 10:35:01,575 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 10:35:01,577 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 10:35:01,590 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 10:35:01,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2022-11-20 10:35:01,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 5 letters. [2022-11-20 10:35:01,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:01,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 5 letters. [2022-11-20 10:35:01,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:01,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 10 letters. [2022-11-20 10:35:01,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:01,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 98 transitions. [2022-11-20 10:35:01,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:35:01,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 28 states and 32 transitions. [2022-11-20 10:35:01,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 10:35:01,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-20 10:35:01,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2022-11-20 10:35:01,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:35:01,625 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-20 10:35:01,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2022-11-20 10:35:01,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2022-11-20 10:35:01,653 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 10:35:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-11-20 10:35:01,655 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 10:35:01,655 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 10:35:01,655 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 10:35:01,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2022-11-20 10:35:01,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:35:01,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:35:01,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:35:01,658 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:35:01,658 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 10:35:01,659 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_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 180#L36 assume !(main_~n~0#1 <= 0); 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 10:35:01,659 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 10:35:01,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:01,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1422073881, now seen corresponding path program 1 times [2022-11-20 10:35:01,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:01,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053819211] [2022-11-20 10:35:01,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:01,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:01,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:35:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:01,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:35:01,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:01,702 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 1 times [2022-11-20 10:35:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:01,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363972098] [2022-11-20 10:35:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:01,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:35:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:01,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:35:01,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:01,730 INFO L85 PathProgramCache]: Analyzing trace with hash -216647933, now seen corresponding path program 1 times [2022-11-20 10:35:01,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:01,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910767280] [2022-11-20 10:35:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:01,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:01,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:35:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:01,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:35:01,893 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:35:01,894 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:35:01,894 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:35:01,894 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:35:01,894 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:35:01,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:01,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:35:01,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:35:01,895 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2022-11-20 10:35:01,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:35:01,895 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:35:01,904 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 10:35:01,909 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 10:35:01,912 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 10:35:01,915 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 10:35:01,991 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:35:01,991 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:35:01,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:01,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:01,993 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 10:35:02,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:02,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:02,029 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:35:02,029 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 10:35:02,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,042 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:02,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:02,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 10:35:02,083 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:35:02,084 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 10:35:02,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,097 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:02,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:02,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 10:35:02,159 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:35:02,159 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 10:35:02,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,174 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:02,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:02,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 10:35:02,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,235 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:35:02,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:02,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 10:35:02,753 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:35:02,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,757 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:35:02,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:35:02,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:35:02,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:35:02,758 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:35:02,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:35:02,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:35:02,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2022-11-20 10:35:02,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:35:02,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:35:02,759 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 10:35:02,766 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 10:35:02,768 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 10:35:02,771 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 10:35:02,841 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:35:02,842 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:35:02,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,843 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 10:35:02,854 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 10:35:02,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:02,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:02,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:02,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:02,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:02,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:02,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:02,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:35:02,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,893 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,905 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 10:35:02,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:02,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:02,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:02,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:02,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:02,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:02,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:02,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 10:35:02,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:35:02,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,943 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,951 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 10:35:02,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:02,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:02,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:02,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:02,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:02,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:02,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:02,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 10:35:02,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:35:02,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:02,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:02,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:02,993 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:02,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 10:35:02,997 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 10:35:03,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:03,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:03,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:03,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:03,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:03,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:03,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:03,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:35:03,024 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:35:03,024 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:35:03,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:03,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:03,028 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:03,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 10:35:03,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:35:03,039 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:35:03,039 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:35:03,039 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2022-11-20 10:35:03,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:03,049 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:35:03,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:03,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:35:03,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:03,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:35:03,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:03,187 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 10:35:03,188 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 10:35:03,189 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 10:35:03,226 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 10:35:03,227 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 10:35:03,228 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 10:35:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 10:35:03,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 5 letters. [2022-11-20 10:35:03,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:03,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 10:35:03,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:03,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 10 letters. [2022-11-20 10:35:03,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:03,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2022-11-20 10:35:03,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:35:03,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 33 states and 37 transitions. [2022-11-20 10:35:03,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-20 10:35:03,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-20 10:35:03,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2022-11-20 10:35:03,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:35:03,235 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-11-20 10:35:03,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2022-11-20 10:35:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2022-11-20 10:35:03,238 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 10:35:03,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-20 10:35:03,240 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-20 10:35:03,240 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-20 10:35:03,240 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 10:35:03,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2022-11-20 10:35:03,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:35:03,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:35:03,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:35:03,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:03,242 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 10:35:03,242 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_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 320#L36 assume !(main_~n~0#1 <= 0); 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 10:35:03,243 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 10:35:03,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:03,244 INFO L85 PathProgramCache]: Analyzing trace with hash -216644988, now seen corresponding path program 2 times [2022-11-20 10:35:03,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:03,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187635826] [2022-11-20 10:35:03,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:03,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:03,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:35:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:03,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:35:03,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:03,275 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 2 times [2022-11-20 10:35:03,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:03,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513178452] [2022-11-20 10:35:03,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:03,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:03,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:35:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:03,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:35:03,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:03,290 INFO L85 PathProgramCache]: Analyzing trace with hash 201252728, now seen corresponding path program 1 times [2022-11-20 10:35:03,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:03,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334035032] [2022-11-20 10:35:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:03,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:03,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:35:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:03,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:35:03,437 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:35:03,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:35:03,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:35:03,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:35:03,438 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:35:03,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:03,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:35:03,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:35:03,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2022-11-20 10:35:03,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:35:03,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:35:03,440 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 10:35:03,455 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 10:35:03,495 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 10:35:03,497 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 10:35:03,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:03,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-11-20 10:35:03,559 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:35:03,559 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:35:03,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:03,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:03,563 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:03,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:35:03,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:03,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 10:35:03,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:03,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:03,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:03,630 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:03,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:35:03,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:35:03,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 10:35:04,166 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:35:04,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:04,169 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:35:04,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:35:04,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:35:04,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:35:04,170 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:35:04,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:04,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:35:04,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:35:04,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2022-11-20 10:35:04,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:35:04,171 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:35:04,172 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 10:35:04,176 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 10:35:04,191 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 10:35:04,211 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 10:35:04,264 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:35:04,264 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:35:04,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:04,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:04,267 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:04,276 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 10:35:04,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 10:35:04,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:04,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:04,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:04,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:04,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:04,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:04,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:04,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:35:04,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:04,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:04,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:04,317 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:04,324 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 10:35:04,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 10:35:04,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:04,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:04,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:04,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:04,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:04,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:04,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:04,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:35:04,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:04,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:04,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:04,360 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:04,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 10:35:04,363 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 10:35:04,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:35:04,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:35:04,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:35:04,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:35:04,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:35:04,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:35:04,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:35:04,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:35:04,416 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:35:04,416 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:35:04,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:35:04,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:04,419 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:04,427 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:35:04,428 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:35:04,428 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:35:04,428 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2022-11-20 10:35:04,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 10:35:04,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:04,439 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:35:04,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:04,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:35:04,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:04,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:35:04,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:04,617 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 10:35:04,618 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 10:35:04,618 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 10:35:04,664 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 10:35:04,665 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 10:35:04,667 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 10:35:04,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 10:35:04,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 10:35:04,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:04,669 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 10:35:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:04,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:35:04,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:04,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:35:04,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:04,804 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 10:35:04,804 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 10:35:04,805 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 10:35:04,826 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 10:35:04,826 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 10:35:04,827 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 10:35:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 10:35:04,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 10:35:04,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:04,828 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 10:35:04,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:04,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:35:04,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:04,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:35:04,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:04,941 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 10:35:04,941 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 10:35:04,942 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 10:35:04,980 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 10:35:04,981 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 10:35:04,981 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 10:35:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-11-20 10:35:04,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 5 letters. [2022-11-20 10:35:04,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:04,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 5 letters. [2022-11-20 10:35:04,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:04,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 10 letters. [2022-11-20 10:35:04,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:35:04,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 86 transitions. [2022-11-20 10:35:04,986 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:35:04,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2022-11-20 10:35:04,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 10:35:04,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 10:35:04,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 10:35:04,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:35:04,987 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:35:04,987 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:35:04,987 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:35:04,987 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 10:35:04,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:35:04,988 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:35:04,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 10:35:04,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:35:04 BoogieIcfgContainer [2022-11-20 10:35:04,996 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:35:04,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:35:04,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:35:04,997 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:35:04,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:59" (3/4) ... [2022-11-20 10:35:05,000 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:35:05,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:35:05,001 INFO L158 Benchmark]: Toolchain (without parser) took 6132.28ms. Allocated memory is still 195.0MB. Free memory was 150.5MB in the beginning and 106.2MB in the end (delta: 44.3MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2022-11-20 10:35:05,001 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 83.9MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:35:05,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.40ms. Allocated memory is still 195.0MB. Free memory was 150.0MB in the beginning and 140.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:35:05,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.06ms. Allocated memory is still 195.0MB. Free memory was 140.0MB in the beginning and 138.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:35:05,002 INFO L158 Benchmark]: Boogie Preprocessor took 37.54ms. Allocated memory is still 195.0MB. Free memory was 138.9MB in the beginning and 137.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:35:05,003 INFO L158 Benchmark]: RCFGBuilder took 394.45ms. Allocated memory is still 195.0MB. Free memory was 137.4MB in the beginning and 127.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:35:05,003 INFO L158 Benchmark]: BuchiAutomizer took 5379.13ms. Allocated memory is still 195.0MB. Free memory was 127.4MB in the beginning and 106.2MB in the end (delta: 21.2MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-11-20 10:35:05,004 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 195.0MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:35:05,006 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 83.9MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.40ms. Allocated memory is still 195.0MB. Free memory was 150.0MB in the beginning and 140.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.06ms. Allocated memory is still 195.0MB. Free memory was 140.0MB in the beginning and 138.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.54ms. Allocated memory is still 195.0MB. Free memory was 138.9MB in the beginning and 137.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 394.45ms. Allocated memory is still 195.0MB. Free memory was 137.4MB in the beginning and 127.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5379.13ms. Allocated memory is still 195.0MB. Free memory was 127.4MB in the beginning and 106.2MB in the end (delta: 21.2MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 195.0MB. Free memory is still 106.2MB. 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 5.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. 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, 0.1s 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: 45ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s 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 10:35:05,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:05,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411d864-56b5-47ac-bc65-016a8b6397b5/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