./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/GCD3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/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_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/GCD3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/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_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/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 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 --- 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 10:58:53,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:58:53,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:58:53,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:58:53,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:58:53,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:58:53,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:58:53,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:58:53,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:58:53,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:58:53,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:58:53,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:58:53,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:58:53,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:58:53,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:58:53,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:58:53,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:58:53,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:58:53,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:58:53,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:58:53,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:58:53,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:58:53,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:58:53,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:58:53,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:58:53,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:58:53,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:58:53,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:58:53,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:58:53,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:58:53,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:58:53,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:58:53,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:58:53,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:58:53,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:58:53,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:58:53,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:58:53,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:58:53,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:58:53,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:58:53,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:58:53,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 10:58:53,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:58:53,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:58:53,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:58:53,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:58:53,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:58:53,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:58:53,439 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:58:53,439 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:58:53,439 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:58:53,439 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:58:53,440 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:58:53,441 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:58:53,441 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:58:53,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:58:53,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:58:53,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:58:53,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:58:53,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:58:53,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:58:53,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:58:53,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:58:53,443 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:58:53,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:58:53,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:58:53,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:58:53,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:58:53,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:58:53,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:58:53,446 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:58:53,446 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_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2022-11-20 10:58:53,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:58:53,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:58:53,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:58:53,742 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:58:53,743 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:58:53,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-restricted-15/GCD3.c [2022-11-20 10:58:56,735 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:58:56,967 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:58:56,967 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/sv-benchmarks/c/termination-restricted-15/GCD3.c [2022-11-20 10:58:56,973 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/data/8fd08f1fc/e1fb5233e79e42b5bcb2b9615566012a/FLAG0bdc81c8b [2022-11-20 10:58:56,989 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/data/8fd08f1fc/e1fb5233e79e42b5bcb2b9615566012a [2022-11-20 10:58:56,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:58:56,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:58:56,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:56,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:58:57,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:58:57,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:56" (1/1) ... [2022-11-20 10:58:57,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f356f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57, skipping insertion in model container [2022-11-20 10:58:57,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:56" (1/1) ... [2022-11-20 10:58:57,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:58:57,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:57,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:57,222 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:58:57,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:57,260 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:58:57,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57 WrapperNode [2022-11-20 10:58:57,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:57,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:57,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:58:57,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:58:57,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,297 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-11-20 10:58:57,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:57,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:58:57,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:58:57,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:58:57,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:58:57,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:58:57,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:58:57,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:58:57,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (1/1) ... [2022-11-20 10:58:57,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:57,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:57,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:57,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:58:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:58:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:58:57,506 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:58:57,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:58:57,593 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:58:57,599 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:58:57,599 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:58:57,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:57 BoogieIcfgContainer [2022-11-20 10:58:57,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:58:57,602 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:58:57,602 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:58:57,606 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:58:57,607 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:58:57,607 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:58:56" (1/3) ... [2022-11-20 10:58:57,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37724d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:58:57, skipping insertion in model container [2022-11-20 10:58:57,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:58:57,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:57" (2/3) ... [2022-11-20 10:58:57,609 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37724d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:58:57, skipping insertion in model container [2022-11-20 10:58:57,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:58:57,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:57" (3/3) ... [2022-11-20 10:58:57,610 INFO L332 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2022-11-20 10:58:57,663 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:58:57,664 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:58:57,664 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:58:57,664 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:58:57,664 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:58:57,664 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:58:57,664 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:58:57,665 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:58:57,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:57,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-20 10:58:57,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:57,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:57,691 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:58:57,692 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:58:57,692 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:58:57,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:57,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-20 10:58:57,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:57,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:57,694 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:58:57,695 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:58:57,702 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 11#L13-2true [2022-11-20 10:58:57,702 INFO L750 eck$LassoCheckResult]: Loop: 11#L13-2true assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 8#L17true assume 0 == main_~y~0#1;main_~y~0#1 := main_~y~0#1; 12#L21-2true assume main_~xtmp~0#1 > 0; 9#L26-2true assume !(main_~xtmp~0#1 >= main_~y~0#1); 14#L26-3true main_~y~0#1 := main_~xtmp~0#1; 5#L25-1true main_~x~0#1 := main_~tmp~0#1; 11#L13-2true [2022-11-20 10:58:57,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 10:58:57,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:57,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620654504] [2022-11-20 10:58:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:57,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:57,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:57,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1216130396, now seen corresponding path program 1 times [2022-11-20 10:58:57,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:57,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885187297] [2022-11-20 10:58:57,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:57,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:57,893 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 10:58:57,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:57,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885187297] [2022-11-20 10:58:57,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885187297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:57,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:57,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:58:57,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072078487] [2022-11-20 10:58:57,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:57,913 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 10:58:57,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:57,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:57,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:57,983 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:58,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:58,035 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-11-20 10:58:58,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2022-11-20 10:58:58,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-20 10:58:58,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2022-11-20 10:58:58,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-20 10:58:58,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-20 10:58:58,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2022-11-20 10:58:58,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:58,046 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-20 10:58:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2022-11-20 10:58:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-20 10:58:58,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-11-20 10:58:58,077 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-20 10:58:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:58,083 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-20 10:58:58,083 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 10:58:58,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-11-20 10:58:58,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-20 10:58:58,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:58,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:58,084 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:58:58,084 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:58,085 INFO L748 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 42#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L13-2 [2022-11-20 10:58:58,085 INFO L750 eck$LassoCheckResult]: Loop: 46#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 39#L17 assume !(0 == main_~y~0#1); 40#L21 assume !(main_~y~0#1 < 0); 45#L21-2 assume !(main_~xtmp~0#1 > 0); 48#L31-2 assume !(main_~xtmp~0#1 < 0); 49#L31-3 main_~y~0#1 := main_~xtmp~0#1; 47#L25-1 main_~x~0#1 := main_~tmp~0#1; 46#L13-2 [2022-11-20 10:58:58,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-20 10:58:58,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:58,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431437261] [2022-11-20 10:58:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:58,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash -900852200, now seen corresponding path program 1 times [2022-11-20 10:58:58,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:58,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376613546] [2022-11-20 10:58:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:58,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:58,134 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 10:58:58,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:58,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376613546] [2022-11-20 10:58:58,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376613546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:58,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:58,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:58:58,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034887894] [2022-11-20 10:58:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:58,137 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 10:58:58,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:58,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:58,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:58,138 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:58,151 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-20 10:58:58,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2022-11-20 10:58:58,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-20 10:58:58,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 15 transitions. [2022-11-20 10:58:58,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-11-20 10:58:58,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-20 10:58:58,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2022-11-20 10:58:58,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:58,154 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-20 10:58:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2022-11-20 10:58:58,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2022-11-20 10:58:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-11-20 10:58:58,156 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-20 10:58:58,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:58,158 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-20 10:58:58,158 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 10:58:58,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2022-11-20 10:58:58,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-20 10:58:58,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:58,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:58,159 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:58:58,160 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:58,160 INFO L748 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 72#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 76#L13-2 [2022-11-20 10:58:58,160 INFO L750 eck$LassoCheckResult]: Loop: 76#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 69#L17 assume !(0 == main_~y~0#1); 70#L21 assume !(main_~y~0#1 < 0); 75#L21-2 assume main_~xtmp~0#1 > 0; 73#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 74#L26-3 main_~y~0#1 := main_~xtmp~0#1; 77#L25-1 main_~x~0#1 := main_~tmp~0#1; 76#L13-2 [2022-11-20 10:58:58,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:58,161 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-20 10:58:58,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:58,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311329053] [2022-11-20 10:58:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:58,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:58,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:58,169 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2022-11-20 10:58:58,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:58,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462126916] [2022-11-20 10:58:58,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:58,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:58,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:58,187 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2022-11-20 10:58:58,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:58,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112719010] [2022-11-20 10:58:58,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:58,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:58,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:58,293 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:58:58,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:58:58,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:58:58,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:58:58,294 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:58:58,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:58,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:58:58,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:58:58,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2022-11-20 10:58:58,295 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:58:58,295 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:58:58,313 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 10:58:58,325 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 10:58:58,333 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 10:58:58,460 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:58:58,461 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:58:58,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:58,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:58,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:58,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:58:58,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:58:58,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 10:58:58,503 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:58:58,504 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:58:58,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:58,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:58,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:58,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:58,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:58:58,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:58:58,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 10:58:58,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:58:58,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:58:58,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:58,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:58,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:58,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:58,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:58:58,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:58:58,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 10:58:58,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:58,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:58,611 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:58,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:58:58,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:58:58,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 10:59:00,654 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:59:00,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:00,659 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:00,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:00,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:00,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:00,660 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:59:00,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:00,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:00,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:00,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2022-11-20 10:59:00,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:00,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:00,663 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 10:59:00,672 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 10:59:00,677 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 10:59:00,768 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:00,775 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:59:00,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:00,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:00,778 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:00,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 10:59:00,791 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 10:59:00,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:00,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:00,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:00,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:00,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:00,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:00,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:00,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:00,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:00,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:00,839 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:00,848 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 10:59:00,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:00,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:00,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:00,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:00,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 10:59:00,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:00,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:00,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:00,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:00,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:00,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:00,890 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:00,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 10:59:00,895 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 10:59:00,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:00,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:59:00,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:00,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:00,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:00,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:59:00,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:59:00,938 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:59:00,947 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:59:00,947 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:59:00,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:00,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:00,985 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:00,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 10:59:00,987 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:59:00,987 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:59:00,987 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:59:00,987 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-20 10:59:00,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:00,994 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:59:01,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:01,037 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:59:01,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:01,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:59:01,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:01,145 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 10:59:01,149 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 10:59:01,150 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:01,224 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 33 transitions. Complement of second has 9 states. [2022-11-20 10:59:01,225 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 10:59:01,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-20 10:59:01,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2022-11-20 10:59:01,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:01,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2022-11-20 10:59:01,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:01,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2022-11-20 10:59:01,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:01,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2022-11-20 10:59:01,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-20 10:59:01,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 25 states and 29 transitions. [2022-11-20 10:59:01,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-20 10:59:01,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-20 10:59:01,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2022-11-20 10:59:01,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:59:01,266 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-11-20 10:59:01,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2022-11-20 10:59:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2022-11-20 10:59:01,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:01,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-20 10:59:01,269 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-20 10:59:01,269 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-20 10:59:01,269 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 10:59:01,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2022-11-20 10:59:01,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-20 10:59:01,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:59:01,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:59:01,278 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:01,279 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-20 10:59:01,279 INFO L748 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 167#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 179#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 162#L17 assume !(0 == main_~y~0#1); 163#L21 assume !(main_~y~0#1 < 0); 172#L21-2 assume main_~xtmp~0#1 > 0; 168#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 169#L26-2 [2022-11-20 10:59:01,279 INFO L750 eck$LassoCheckResult]: Loop: 169#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 169#L26-2 [2022-11-20 10:59:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2022-11-20 10:59:01,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:01,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344200423] [2022-11-20 10:59:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:01,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:01,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:01,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:01,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:01,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:01,333 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2022-11-20 10:59:01,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:01,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572777102] [2022-11-20 10:59:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:01,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:01,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:01,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:01,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:01,340 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2022-11-20 10:59:01,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:01,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729393466] [2022-11-20 10:59:01,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:01,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:01,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:01,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:01,454 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:01,455 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:01,456 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:01,456 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:01,456 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:59:01,456 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:01,457 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:01,457 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:01,457 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2022-11-20 10:59:01,457 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:01,457 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:01,464 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 10:59:01,471 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 10:59:01,485 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 10:59:01,488 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 10:59:01,494 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 10:59:01,496 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 10:59:01,576 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:01,576 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:59:01,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:01,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:01,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:01,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:01,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:01,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 10:59:01,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:59:01,611 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:59:01,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:01,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:01,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:01,617 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:01,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 10:59:01,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:01,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:01,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:01,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:01,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:01,685 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:01,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:59:01,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:01,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 10:59:01,843 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:59:01,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:01,846 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:01,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:01,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:01,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:01,847 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:59:01,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:01,847 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:01,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:01,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2022-11-20 10:59:01,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:01,847 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:01,849 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 10:59:01,863 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 10:59:01,877 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 10:59:01,888 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 10:59:01,891 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 10:59:01,894 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 10:59:01,977 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:01,977 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:59:01,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:01,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:01,983 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:01,988 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 10:59:02,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:02,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:02,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:02,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:02,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:02,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:02,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 10:59:02,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:02,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:02,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:02,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:02,024 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:02,036 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 10:59:02,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:02,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:02,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:02,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:02,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 10:59:02,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:02,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:02,074 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:59:02,091 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-20 10:59:02,091 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-11-20 10:59:02,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:02,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:02,093 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:02,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 10:59:02,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:59:02,128 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2022-11-20 10:59:02,128 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:59:02,128 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 + 1*ULTIMATE.start_main_~tmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 Supporting invariants [1*ULTIMATE.start_main_~tmp~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2022-11-20 10:59:02,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:02,144 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2022-11-20 10:59:02,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:02,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:59:02,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:02,272 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:59:02,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:02,273 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 10:59:02,275 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-20 10:59:02,276 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:02,329 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 32 transitions. Complement of second has 6 states. [2022-11-20 10:59:02,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 10:59:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:02,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-11-20 10:59:02,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2022-11-20 10:59:02,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:02,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 1 letters. [2022-11-20 10:59:02,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:02,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-20 10:59:02,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:02,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2022-11-20 10:59:02,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-20 10:59:02,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2022-11-20 10:59:02,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-20 10:59:02,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-20 10:59:02,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2022-11-20 10:59:02,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:59:02,342 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-20 10:59:02,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2022-11-20 10:59:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-11-20 10:59:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:02,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-20 10:59:02,349 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-20 10:59:02,349 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-20 10:59:02,350 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 10:59:02,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2022-11-20 10:59:02,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-20 10:59:02,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:59:02,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:59:02,354 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:02,354 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:02,355 INFO L748 eck$LassoCheckResult]: Stem: 273#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 274#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 286#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 288#L17 assume !(0 == main_~y~0#1); 292#L21 assume !(main_~y~0#1 < 0); 291#L21-2 assume main_~xtmp~0#1 > 0; 290#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 289#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 276#L26-3 [2022-11-20 10:59:02,355 INFO L750 eck$LassoCheckResult]: Loop: 276#L26-3 main_~y~0#1 := main_~xtmp~0#1; 282#L25-1 main_~x~0#1 := main_~tmp~0#1; 280#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 269#L17 assume !(0 == main_~y~0#1); 270#L21 assume !(main_~y~0#1 < 0); 278#L21-2 assume main_~xtmp~0#1 > 0; 275#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 276#L26-3 [2022-11-20 10:59:02,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2022-11-20 10:59:02,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:02,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260218496] [2022-11-20 10:59:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:02,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:02,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:02,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:02,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2022-11-20 10:59:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:02,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666818460] [2022-11-20 10:59:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:02,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:02,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:02,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:02,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2022-11-20 10:59:02,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:02,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148350216] [2022-11-20 10:59:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:02,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:59:02,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:02,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148350216] [2022-11-20 10:59:02,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148350216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:59:02,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968027665] [2022-11-20 10:59:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:02,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:02,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:02,505 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:59:02,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 10:59:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:02,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:59:02,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:59:02,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:59:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:59:02,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968027665] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:59:02,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:59:02,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-11-20 10:59:02,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934038526] [2022-11-20 10:59:02,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:59:02,733 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:02,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:02,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:02,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:02,733 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:59:02,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:02,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:02,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:02,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2022-11-20 10:59:02,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:02,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:02,735 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 10:59:02,760 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 10:59:02,763 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 10:59:02,843 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:02,843 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:59:02,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:02,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:02,847 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:02,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:02,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:02,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 10:59:02,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:02,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:02,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:02,895 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:02,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 10:59:02,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:59:02,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:04,648 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:59:04,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:04,652 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:04,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:04,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:04,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:04,653 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:59:04,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:04,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:04,653 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:04,653 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2022-11-20 10:59:04,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:04,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:04,655 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 10:59:04,668 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 10:59:04,672 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 10:59:04,734 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:04,734 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:59:04,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:04,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:04,747 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:04,757 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 10:59:04,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 10:59:04,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:04,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:59:04,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:04,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:04,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:04,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:59:04,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:59:04,788 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:59:04,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:59:04,793 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:59:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:04,798 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:04,809 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:59:04,809 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:59:04,809 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:59:04,809 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2022-11-20 10:59:04,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-11-20 10:59:04,818 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:59:04,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:04,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:59:04,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:04,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 10:59:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:04,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:59:04,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:04,887 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 10:59:04,887 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 10:59:04,888 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:04,928 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 73 transitions. Complement of second has 8 states. [2022-11-20 10:59:04,928 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 10:59:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-11-20 10:59:04,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 7 letters. [2022-11-20 10:59:04,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:04,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 7 letters. [2022-11-20 10:59:04,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:04,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 14 letters. [2022-11-20 10:59:04,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:04,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 73 transitions. [2022-11-20 10:59:04,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 10:59:04,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 68 transitions. [2022-11-20 10:59:04,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-11-20 10:59:04,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-20 10:59:04,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2022-11-20 10:59:04,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:59:04,941 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-11-20 10:59:04,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2022-11-20 10:59:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2022-11-20 10:59:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 46 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2022-11-20 10:59:04,949 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2022-11-20 10:59:04,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:04,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:59:04,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:59:04,951 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:05,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:05,076 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2022-11-20 10:59:05,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2022-11-20 10:59:05,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 10:59:05,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2022-11-20 10:59:05,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-11-20 10:59:05,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-11-20 10:59:05,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2022-11-20 10:59:05,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:59:05,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-20 10:59:05,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2022-11-20 10:59:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2022-11-20 10:59:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:05,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-20 10:59:05,092 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-20 10:59:05,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:59:05,095 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-20 10:59:05,095 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 10:59:05,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2022-11-20 10:59:05,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 10:59:05,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:59:05,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:59:05,096 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:05,096 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:05,097 INFO L748 eck$LassoCheckResult]: Stem: 628#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 629#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 640#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 646#L17 assume !(0 == main_~y~0#1); 645#L21 assume !(main_~y~0#1 < 0); 644#L21-2 assume main_~xtmp~0#1 > 0; 643#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 642#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 633#L26-3 [2022-11-20 10:59:05,097 INFO L750 eck$LassoCheckResult]: Loop: 633#L26-3 main_~y~0#1 := main_~xtmp~0#1; 641#L25-1 main_~x~0#1 := main_~tmp~0#1; 636#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 626#L17 assume !(0 == main_~y~0#1); 627#L21 assume !(main_~y~0#1 < 0); 639#L21-2 assume main_~xtmp~0#1 > 0; 630#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 631#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 633#L26-3 [2022-11-20 10:59:05,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:05,097 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2022-11-20 10:59:05,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:05,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202087795] [2022-11-20 10:59:05,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:05,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:05,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:05,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:05,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-11-20 10:59:05,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-11-20 10:59:05,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2022-11-20 10:59:05,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:05,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600435019] [2022-11-20 10:59:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:05,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:05,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:05,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2022-11-20 10:59:05,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:05,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274967344] [2022-11-20 10:59:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:05,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:05,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:05,234 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:05,234 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:05,234 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:05,234 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:05,234 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:59:05,234 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:05,235 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:05,235 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:05,235 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2022-11-20 10:59:05,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:05,235 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:05,236 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 10:59:05,239 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 10:59:05,263 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 10:59:05,338 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:05,339 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:59:05,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:05,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:05,343 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:05,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:05,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:05,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 10:59:05,374 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:59:05,374 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:59:05,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:05,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:05,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:05,384 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:05,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 10:59:05,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:05,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:05,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:05,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:05,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:05,433 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:05,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:59:05,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:05,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 10:59:09,677 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:59:09,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-20 10:59:09,682 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:09,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:09,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:09,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:09,682 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:59:09,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:09,682 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:09,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:09,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2022-11-20 10:59:09,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:09,683 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:09,684 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 10:59:09,687 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 10:59:09,689 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 10:59:09,770 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:09,771 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:59:09,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:09,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:09,775 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:09,779 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 10:59:09,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:09,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:09,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:09,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:09,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:09,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:09,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 10:59:09,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:09,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:09,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:09,823 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:09,827 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 10:59:09,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 10:59:09,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:09,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:09,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:09,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:09,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:09,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:09,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:09,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:09,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:09,868 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:09,875 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 10:59:09,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:09,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:59:09,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:09,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:09,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:09,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 10:59:09,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:59:09,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:59:09,906 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:59:09,922 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:59:09,922 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:59:09,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:09,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:09,923 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:09,927 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:59:09,927 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:59:09,928 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:59:09,928 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2022-11-20 10:59:09,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 10:59:09,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:09,934 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:59:09,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:09,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:59:09,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:09,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:59:09,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:59:10,035 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 10:59:10,035 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:10,077 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 55 transitions. Complement of second has 6 states. [2022-11-20 10:59:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:59:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:10,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 10:59:10,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-20 10:59:10,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:10,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-20 10:59:10,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:10,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2022-11-20 10:59:10,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:10,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2022-11-20 10:59:10,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-20 10:59:10,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2022-11-20 10:59:10,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-20 10:59:10,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-20 10:59:10,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2022-11-20 10:59:10,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:59:10,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-11-20 10:59:10,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2022-11-20 10:59:10,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2022-11-20 10:59:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:10,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-11-20 10:59:10,084 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-11-20 10:59:10,084 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-11-20 10:59:10,084 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 10:59:10,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2022-11-20 10:59:10,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-20 10:59:10,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:59:10,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:59:10,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:10,085 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-20 10:59:10,085 INFO L748 eck$LassoCheckResult]: Stem: 772#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 773#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 783#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 796#L17 assume !(0 == main_~y~0#1); 795#L21 assume !(main_~y~0#1 < 0); 793#L21-2 assume main_~xtmp~0#1 > 0; 791#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 788#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 786#L26-3 main_~y~0#1 := main_~xtmp~0#1; 781#L25-1 main_~x~0#1 := main_~tmp~0#1; 779#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 768#L17 assume !(0 == main_~y~0#1); 769#L21 assume !(main_~y~0#1 < 0); 777#L21-2 assume main_~xtmp~0#1 > 0; 774#L26-2 [2022-11-20 10:59:10,086 INFO L750 eck$LassoCheckResult]: Loop: 774#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 774#L26-2 [2022-11-20 10:59:10,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2022-11-20 10:59:10,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:10,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606742593] [2022-11-20 10:59:10,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:10,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:10,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:10,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:10,098 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2022-11-20 10:59:10,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:10,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917897433] [2022-11-20 10:59:10,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:10,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:10,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:10,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:10,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2022-11-20 10:59:10,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:10,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842686225] [2022-11-20 10:59:10,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:10,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:10,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:59:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:59:10,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:59:10,203 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:10,204 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:10,204 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:10,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:10,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:59:10,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:10,205 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:10,205 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2022-11-20 10:59:10,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:10,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:10,207 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 10:59:10,211 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 10:59:10,214 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 10:59:10,216 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 10:59:10,218 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 10:59:10,221 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 10:59:10,305 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:10,306 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:59:10,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,308 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:10,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:10,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 10:59:10,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:59:10,351 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:59:10,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,365 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:10,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:10,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 10:59:10,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:59:10,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:59:10,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,394 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 10:59:10,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:10,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:10,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:59:10,408 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:59:10,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-20 10:59:10,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,411 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 10:59:10,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:10,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:10,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:59:10,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:59:10,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-20 10:59:10,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,431 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 10:59:10,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:10,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:10,459 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:59:10,459 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:59:10,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,469 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:59:10,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:10,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 10:59:10,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,511 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-20 10:59:10,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:59:10,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:59:10,645 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:59:10,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-11-20 10:59:10,648 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:59:10,649 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:59:10,649 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:59:10,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:59:10,649 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:59:10,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,649 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:59:10,649 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:59:10,649 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2022-11-20 10:59:10,649 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:59:10,649 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:59:10,650 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 10:59:10,657 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 10:59:10,660 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 10:59:10,663 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 10:59:10,665 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 10:59:10,667 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 10:59:10,762 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:59:10,762 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:59:10,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,765 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,769 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 10:59:10,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:10,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:10,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:10,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:10,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:10,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:10,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-20 10:59:10,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:10,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,803 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,811 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 10:59:10,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:10,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:59:10,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:10,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:10,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:10,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:59:10,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:59:10,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-20 10:59:10,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:10,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,844 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,851 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 10:59:10,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:10,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:10,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:10,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:10,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:10,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:10,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-20 10:59:10,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:10,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,884 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-20 10:59:10,886 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 10:59:10,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:10,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:59:10,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:10,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:10,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:10,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:59:10,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:59:10,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:10,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,906 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-20 10:59:10,908 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 10:59:10,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:10,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:59:10,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:10,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:10,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:10,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:59:10,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:59:10,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:59:10,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:10,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,924 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-20 10:59:10,927 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 10:59:10,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:59:10,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:59:10,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:59:10,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:59:10,943 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:59:10,943 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:59:10,954 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:59:10,969 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-20 10:59:10,969 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-20 10:59:10,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:59:10,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:10,971 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,979 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:59:10,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-20 10:59:10,995 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-20 10:59:10,995 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:59:10,995 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2022-11-20 10:59:10,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:11,000 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-20 10:59:11,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:11,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:59:11,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:11,086 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:59:11,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:11,087 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 10:59:11,088 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-20 10:59:11,088 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:11,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2022-11-20 10:59:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 10:59:11,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:11,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-11-20 10:59:11,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2022-11-20 10:59:11,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:11,128 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 10:59:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:11,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:59:11,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:11,195 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:59:11,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:11,195 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 10:59:11,195 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-20 10:59:11,196 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:11,224 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2022-11-20 10:59:11,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 10:59:11,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:11,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-11-20 10:59:11,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2022-11-20 10:59:11,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:11,227 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 10:59:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:11,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:59:11,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:11,296 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:59:11,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:11,297 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 10:59:11,297 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-20 10:59:11,297 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:11,337 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 40 transitions. Complement of second has 5 states. [2022-11-20 10:59:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 10:59:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:59:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2022-11-20 10:59:11,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 1 letters. [2022-11-20 10:59:11,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:11,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 15 letters. Loop has 1 letters. [2022-11-20 10:59:11,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:11,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2022-11-20 10:59:11,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:59:11,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2022-11-20 10:59:11,361 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:59:11,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2022-11-20 10:59:11,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 10:59:11,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 10:59:11,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 10:59:11,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:59:11,361 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:59:11,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:59:11,361 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:59:11,361 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-20 10:59:11,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:59:11,361 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:59:11,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 10:59:11,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:11,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:11,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:59:11 BoogieIcfgContainer [2022-11-20 10:59:11,375 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:59:11,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:59:11,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:59:11,376 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:59:11,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:57" (3/4) ... [2022-11-20 10:59:11,380 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:59:11,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:59:11,381 INFO L158 Benchmark]: Toolchain (without parser) took 14387.84ms. Allocated memory is still 186.6MB. Free memory was 153.9MB in the beginning and 149.8MB in the end (delta: 4.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-20 10:59:11,381 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 73.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:59:11,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.56ms. Allocated memory is still 186.6MB. Free memory was 153.9MB in the beginning and 144.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:59:11,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.88ms. Allocated memory is still 186.6MB. Free memory was 144.5MB in the beginning and 143.6MB in the end (delta: 944.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:59:11,383 INFO L158 Benchmark]: Boogie Preprocessor took 34.64ms. Allocated memory is still 186.6MB. Free memory was 143.6MB in the beginning and 142.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:59:11,383 INFO L158 Benchmark]: RCFGBuilder took 265.48ms. Allocated memory is still 186.6MB. Free memory was 142.4MB in the beginning and 131.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:59:11,384 INFO L158 Benchmark]: BuchiAutomizer took 13773.21ms. Allocated memory is still 186.6MB. Free memory was 131.9MB in the beginning and 149.8MB in the end (delta: -17.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:59:11,385 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 186.6MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:59:11,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 73.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.56ms. Allocated memory is still 186.6MB. Free memory was 153.9MB in the beginning and 144.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.88ms. Allocated memory is still 186.6MB. Free memory was 144.5MB in the beginning and 143.6MB in the end (delta: 944.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.64ms. Allocated memory is still 186.6MB. Free memory was 143.6MB in the beginning and 142.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.48ms. Allocated memory is still 186.6MB. Free memory was 142.4MB in the beginning and 131.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 13773.21ms. Allocated memory is still 186.6MB. Free memory was 131.9MB in the beginning and 149.8MB in the end (delta: -17.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 186.6MB. Free memory is still 149.8MB. 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 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function 2 * xtmp + -2 * y + tmp and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function 2 * xtmp + -2 * y + 1 and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.7s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 12.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 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 [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 66 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq172 hnf90 smp96 dnf100 smp100 tf103 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 8.8s 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 10:59:11,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-20 10:59:11,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a5b23b6-63ab-4cfd-b411-99afe3e528c6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE