./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF --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 b554c1d7af2660450d4cf0698acea32b4eee62050b9ff10289bc1cd6376d9f70 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:47:23,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:47:23,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:47:23,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:47:23,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:47:23,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:47:23,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:47:23,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:47:23,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:47:23,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:47:23,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:47:23,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:47:23,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:47:23,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:47:23,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:47:23,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:47:23,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:47:23,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:47:23,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:47:23,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:47:23,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:47:23,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:47:23,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:47:23,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:47:23,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:47:23,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:47:23,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:47:23,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:47:23,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:47:23,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:47:23,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:47:23,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:47:23,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:47:23,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:47:23,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:47:23,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:47:23,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:47:23,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:47:23,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:47:23,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:47:23,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:47:23,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 05:47:23,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:47:23,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:47:23,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:47:23,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:47:23,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:47:23,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:47:23,990 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:47:23,990 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:47:23,990 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:47:23,990 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:47:23,991 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:47:23,991 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:47:23,991 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:47:23,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:47:23,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:47:23,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:47:23,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:47:23,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:47:23,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:47:23,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:47:23,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:47:23,994 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:47:23,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:47:23,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:47:23,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:47:23,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:47:23,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:47:23,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:47:23,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:47:23,997 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:47:23,997 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_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b554c1d7af2660450d4cf0698acea32b4eee62050b9ff10289bc1cd6376d9f70 [2021-11-20 05:47:24,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:47:24,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:47:24,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:47:24,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:47:24,261 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:47:24,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-bwb/or-04.c [2021-11-20 05:47:24,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/data/20d00a70b/7c5dd0e7d8e94ab39133bfefe80ae63f/FLAG411bea714 [2021-11-20 05:47:24,785 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:47:24,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/sv-benchmarks/c/termination-bwb/or-04.c [2021-11-20 05:47:24,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/data/20d00a70b/7c5dd0e7d8e94ab39133bfefe80ae63f/FLAG411bea714 [2021-11-20 05:47:25,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/data/20d00a70b/7c5dd0e7d8e94ab39133bfefe80ae63f [2021-11-20 05:47:25,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:47:25,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:47:25,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:25,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:47:25,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:47:25,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ed91b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25, skipping insertion in model container [2021-11-20 05:47:25,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:47:25,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:47:25,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:25,399 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:47:25,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:25,420 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:47:25,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25 WrapperNode [2021-11-20 05:47:25,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:25,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:25,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:47:25,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:47:25,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,449 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-11-20 05:47:25,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:25,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:47:25,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:47:25,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:47:25,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:47:25,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:47:25,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:47:25,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:47:25,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (1/1) ... [2021-11-20 05:47:25,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:25,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:25,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:25,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:47:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:47:25,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:47:25,589 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:47:25,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:47:25,673 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:47:25,680 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:47:25,680 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 05:47:25,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:25 BoogieIcfgContainer [2021-11-20 05:47:25,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:47:25,683 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:47:25,683 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:47:25,686 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:47:25,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:47:25,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:47:25" (1/3) ... [2021-11-20 05:47:25,688 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e698675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:47:25, skipping insertion in model container [2021-11-20 05:47:25,688 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:47:25,688 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:25" (2/3) ... [2021-11-20 05:47:25,689 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e698675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:47:25, skipping insertion in model container [2021-11-20 05:47:25,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:47:25,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:25" (3/3) ... [2021-11-20 05:47:25,690 INFO L388 chiAutomizerObserver]: Analyzing ICFG or-04.c [2021-11-20 05:47:25,737 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:47:25,737 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:47:25,737 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:47:25,737 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:47:25,737 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:47:25,737 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:47:25,738 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:47:25,738 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:47:25,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2021-11-20 05:47:25,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:47:25,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:47:25,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:47:25,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:47:25,774 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:47:25,774 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:47:25,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2021-11-20 05:47:25,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:47:25,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:47:25,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:47:25,776 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:47:25,776 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:47:25,782 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#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_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L20-2true [2021-11-20 05:47:25,782 INFO L793 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 8#L21-2true assume !(0 != main_~y~0#1); 6#L20-2true [2021-11-20 05:47:25,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:25,788 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 05:47:25,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:25,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043828129] [2021-11-20 05:47:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:25,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:25,863 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:25,880 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:25,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2021-11-20 05:47:25,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:25,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059113650] [2021-11-20 05:47:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:25,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:47:25,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:25,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059113650] [2021-11-20 05:47:25,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059113650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:25,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:25,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 05:47:25,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195862235] [2021-11-20 05:47:25,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:25,949 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 05:47:25,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:47:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:47:26,010 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-20 05:47:26,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:26,036 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-20 05:47:26,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:47:26,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-11-20 05:47:26,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-20 05:47:26,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 9 transitions. [2021-11-20 05:47:26,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-20 05:47:26,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-20 05:47:26,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-11-20 05:47:26,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:47:26,047 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-20 05:47:26,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-11-20 05:47:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-20 05:47:26,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) 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) [2021-11-20 05:47:26,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-11-20 05:47:26,090 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-20 05:47:26,090 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-20 05:47:26,090 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 05:47:26,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-11-20 05:47:26,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-20 05:47:26,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:47:26,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:47:26,091 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:47:26,091 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:47:26,092 INFO L791 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 31#L20-2 [2021-11-20 05:47:26,092 INFO L793 eck$LassoCheckResult]: Loop: 31#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 32#L21-2 assume !!(0 != main_~y~0#1); 33#L21 assume main_~y~0#1 > 0;main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 34#L21-2 assume !(0 != main_~y~0#1); 31#L20-2 [2021-11-20 05:47:26,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-11-20 05:47:26,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:26,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612870064] [2021-11-20 05:47:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:26,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,097 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:26,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1271173, now seen corresponding path program 1 times [2021-11-20 05:47:26,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:26,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831973387] [2021-11-20 05:47:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:26,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,108 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:26,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,114 INFO L85 PathProgramCache]: Analyzing trace with hash 889698375, now seen corresponding path program 1 times [2021-11-20 05:47:26,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:26,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26198912] [2021-11-20 05:47:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:26,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,121 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:26,211 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:47:26,212 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:47:26,212 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:47:26,212 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:47:26,213 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 05:47:26,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:26,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:47:26,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:47:26,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2021-11-20 05:47:26,213 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:47:26,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:47:26,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:26,266 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:47:26,266 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 05:47:26,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:26,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:26,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:26,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 05:47:26,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:47:26,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:47:26,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:26,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:26,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:26,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:26,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 05:47:26,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 05:47:26,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:47:26,463 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 05:47:26,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:26,471 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:47:26,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:47:26,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:47:26,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:47:26,471 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:47:26,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:26,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:47:26,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:47:26,472 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2021-11-20 05:47:26,472 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:47:26,472 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:47:26,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:26,513 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:47:26,518 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:47:26,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:26,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:26,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:26,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 05:47:26,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:47:26,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:47:26,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:47:26,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:47:26,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:47:26,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:47:26,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:47:26,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:47:26,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:47:26,573 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 05:47:26,573 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 05:47:26,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:26,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:26,577 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:26,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:47:26,579 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 05:47:26,580 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:47:26,580 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 [] [2021-11-20 05:47:26,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 05:47:26,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:26,621 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 05:47:26,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:26,663 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:47:26,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:47:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:26,682 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:47:26,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:47:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 05:47:26,737 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 05:47:26,738 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-11-20 05:47:26,801 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 24 transitions. Complement of second has 6 states. [2021-11-20 05:47:26,802 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 [2021-11-20 05:47:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-11-20 05:47:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-11-20 05:47:26,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-20 05:47:26,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:47:26,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-20 05:47:26,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:47:26,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2021-11-20 05:47:26,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:47:26,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2021-11-20 05:47:26,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 05:47:26,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 24 transitions. [2021-11-20 05:47:26,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-20 05:47:26,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-11-20 05:47:26,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2021-11-20 05:47:26,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:47:26,813 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2021-11-20 05:47:26,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2021-11-20 05:47:26,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2021-11-20 05:47:26,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-11-20 05:47:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-11-20 05:47:26,817 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-20 05:47:26,817 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-20 05:47:26,817 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 05:47:26,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-11-20 05:47:26,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:47:26,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:47:26,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:47:26,820 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 05:47:26,820 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:47:26,821 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 95#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 96#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 98#L21-2 assume !!(0 != main_~y~0#1); 100#L21 assume main_~y~0#1 > 0;main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 101#L21-2 [2021-11-20 05:47:26,821 INFO L793 eck$LassoCheckResult]: Loop: 101#L21-2 assume !!(0 != main_~y~0#1); 104#L21 assume main_~y~0#1 > 0;main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 101#L21-2 [2021-11-20 05:47:26,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,829 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2021-11-20 05:47:26,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:26,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345098820] [2021-11-20 05:47:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:26,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,842 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,849 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1604, now seen corresponding path program 1 times [2021-11-20 05:47:26,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:26,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157353423] [2021-11-20 05:47:26,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:26,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,857 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,870 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:26,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845934, now seen corresponding path program 2 times [2021-11-20 05:47:26,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:26,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994009945] [2021-11-20 05:47:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:26,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,879 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:26,885 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:26,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:47:26 BoogieIcfgContainer [2021-11-20 05:47:26,924 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 05:47:26,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:47:26,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:47:26,925 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:47:26,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:25" (3/4) ... [2021-11-20 05:47:26,929 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:47:26,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:47:26,931 INFO L158 Benchmark]: Toolchain (without parser) took 1715.68ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 78.3MB in the end (delta: 8.7MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-11-20 05:47:26,937 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:47:26,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.74ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 94.8MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:47:26,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.91ms. Allocated memory is still 117.4MB. Free memory was 94.8MB in the beginning and 93.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:47:26,940 INFO L158 Benchmark]: Boogie Preprocessor took 17.57ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 92.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:47:26,941 INFO L158 Benchmark]: RCFGBuilder took 212.87ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 83.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:47:26,941 INFO L158 Benchmark]: BuchiAutomizer took 1241.34ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 79.0MB in the end (delta: 4.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-20 05:47:26,944 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 78.3MB in the end (delta: 631.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:47:26,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.74ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 94.8MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.91ms. Allocated memory is still 117.4MB. Free memory was 94.8MB in the beginning and 93.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.57ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 92.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 212.87ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 83.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1241.34ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 79.0MB in the end (delta: 4.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 78.3MB in the end (delta: 631.9kB). 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 13 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq136 hnf93 smp100 dnf100 smp100 tf114 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 61ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y|(y+1) [22] (Reason bitwiseOr) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~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;" "assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);" "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);main_~y~0#1 := main_~x~0#1 - main_~y~0#1;" Loop: "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);main_~y~0#1 := main_~x~0#1 - main_~y~0#1;" RESULT: Ultimate could not prove your program: unable to determine termination [2021-11-20 05:47:27,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:27,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564c7164-cc67-422e-9bd3-f267947ddb9b/bin/uautomizer-DQz5hQGWxF/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN