./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/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_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/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_154377b9-f926-4b1b-a24d-166a0af2d04c/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 c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae --- 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 12:00:51,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:00:51,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:00:51,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:00:51,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:00:51,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:00:51,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:00:51,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:00:51,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:00:51,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:00:51,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:00:51,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:00:51,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:00:51,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:00:51,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:00:51,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:00:51,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:00:51,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:00:51,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:00:51,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:00:51,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:00:51,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:00:51,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:00:51,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:00:51,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:00:51,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:00:51,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:00:51,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:00:51,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:00:51,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:00:51,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:00:51,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:00:51,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:00:51,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:00:51,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:00:51,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:00:51,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:00:51,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:00:51,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:00:51,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:00:51,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:00:51,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 12:00:51,664 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:00:51,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:00:51,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:00:51,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:00:51,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:00:51,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:00:51,684 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:00:51,684 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:00:51,684 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:00:51,684 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:00:51,685 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:00:51,686 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:00:51,686 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:00:51,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:00:51,686 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:00:51,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:00:51,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:00:51,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:00:51,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:00:51,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:00:51,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:00:51,688 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:00:51,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:00:51,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:00:51,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:00:51,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:00:51,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:00:51,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:00:51,691 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:00:51,692 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_154377b9-f926-4b1b-a24d-166a0af2d04c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae [2022-11-20 12:00:51,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:00:51,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:00:51,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:00:51,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:00:51,982 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:00:51,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-bwb/or-04.c [2022-11-20 12:00:55,124 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:00:55,291 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:00:55,292 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/sv-benchmarks/c/termination-bwb/or-04.c [2022-11-20 12:00:55,298 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/data/85efce86c/fbd8ffe32be9493a86ac5d5cd7ddf060/FLAG4c739bb08 [2022-11-20 12:00:55,321 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/data/85efce86c/fbd8ffe32be9493a86ac5d5cd7ddf060 [2022-11-20 12:00:55,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:00:55,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:00:55,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:00:55,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:00:55,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:00:55,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7590fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55, skipping insertion in model container [2022-11-20 12:00:55,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:00:55,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:00:55,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:00:55,507 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:00:55,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:00:55,536 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:00:55,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55 WrapperNode [2022-11-20 12:00:55,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:00:55,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:00:55,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:00:55,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:00:55,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,570 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-11-20 12:00:55,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:00:55,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:00:55,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:00:55,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:00:55,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:00:55,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:00:55,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:00:55,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:00:55,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (1/1) ... [2022-11-20 12:00:55,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:55,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:55,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:55,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:00:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:00:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:00:55,748 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:00:55,751 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:00:55,858 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:00:55,867 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:00:55,867 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:00:55,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:55 BoogieIcfgContainer [2022-11-20 12:00:55,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:00:55,870 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:00:55,871 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:00:55,875 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:00:55,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:00:55,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:00:55" (1/3) ... [2022-11-20 12:00:55,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b36de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:00:55, skipping insertion in model container [2022-11-20 12:00:55,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:00:55,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:55" (2/3) ... [2022-11-20 12:00:55,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b36de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:00:55, skipping insertion in model container [2022-11-20 12:00:55,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:00:55,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:55" (3/3) ... [2022-11-20 12:00:55,883 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-04.c [2022-11-20 12:00:55,962 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:00:55,962 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:00:55,962 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:00:55,963 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:00:55,963 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:00:55,963 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:00:55,963 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:00:55,963 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:00:55,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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 12:00:55,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:00:55,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:00:55,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:00:55,995 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:00:55,995 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:00:55,996 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:00:55,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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 12:00:55,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:00:55,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:00:55,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:00:55,998 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:00:55,998 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:00:56,007 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#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_#t~nondet2#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 [2022-11-20 12:00:56,007 INFO L750 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 [2022-11-20 12:00:56,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:56,014 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 12:00:56,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:56,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385620321] [2022-11-20 12:00:56,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:56,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:56,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:56,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2022-11-20 12:00:56,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:56,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311112275] [2022-11-20 12:00:56,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:56,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:56,268 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 12:00:56,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:56,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311112275] [2022-11-20 12:00:56,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311112275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:56,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:56,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:00:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792788000] [2022-11-20 12:00:56,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:56,280 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:00:56,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:56,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:56,336 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2022-11-20 12:00:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:56,415 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2022-11-20 12:00:56,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2022-11-20 12:00:56,418 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 12:00:56,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2022-11-20 12:00:56,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-20 12:00:56,423 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-20 12:00:56,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-11-20 12:00:56,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:56,424 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-20 12:00:56,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-11-20 12:00:56,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-20 12:00:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 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 12:00:56,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-20 12:00:56,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-20 12:00:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:56,459 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-20 12:00:56,459 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:00:56,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2022-11-20 12:00:56,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 12:00:56,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:00:56,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:00:56,461 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:00:56,461 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:56,461 INFO L748 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 38#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 40#L20-2 [2022-11-20 12:00:56,462 INFO L750 eck$LassoCheckResult]: Loop: 40#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 41#L21-2 assume !!(0 != main_~y~0#1); 39#L21 assume main_~y~0#1 > 0; 35#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 36#L22-2 assume !(0 == 1 + main_~y~0#1);main_#t~nondet2#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_#t~nondet2#1 >= main_~y~0#1 && main_#t~nondet2#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1); 42#L22-4 main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 43#L21-2 assume !(0 != main_~y~0#1); 40#L20-2 [2022-11-20 12:00:56,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:56,462 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-20 12:00:56,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:56,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717981317] [2022-11-20 12:00:56,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:56,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:56,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:56,484 INFO L85 PathProgramCache]: Analyzing trace with hash -784860095, now seen corresponding path program 1 times [2022-11-20 12:00:56,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:56,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757284191] [2022-11-20 12:00:56,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:56,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash 761436735, now seen corresponding path program 1 times [2022-11-20 12:00:56,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:56,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481681273] [2022-11-20 12:00:56,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:56,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:56,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:56,716 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:00:56,722 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:00:56,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:00:56,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:00:56,723 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:00:56,723 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:56,723 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:00:56,723 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:00:56,723 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2022-11-20 12:00:56,724 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:00:56,724 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:00:56,742 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 12:00:56,775 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 12:00:56,816 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:00:56,816 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:00:56,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:56,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:56,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:56,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 12:00:56,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:56,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:56,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-20 12:00:56,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:56,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:56,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:56,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 12:00:56,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:00:56,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:56,920 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:00:56,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:56,935 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:00:56,935 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:00:56,935 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:00:56,935 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:00:56,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:00:56,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:56,954 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:00:56,954 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:00:56,954 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2022-11-20 12:00:56,955 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:00:56,955 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:00:56,956 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 12:00:56,972 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 12:00:57,006 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:00:57,010 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:00:57,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:57,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:57,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:57,026 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 12:00:57,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 12:00:57,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:00:57,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:00:57,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:00:57,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:00:57,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:00:57,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:00:57,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:00:57,059 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:00:57,069 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:00:57,069 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:00:57,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:57,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:57,095 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:57,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:00:57,102 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:00:57,102 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:00:57,103 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 12:00:57,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 12:00:57,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-20 12:00:57,115 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:00:57,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:57,147 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:00:57,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:57,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:00:57,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:57,192 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 12:00:57,196 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 12:00:57,197 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 12:00:57,263 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 36 transitions. Complement of second has 6 states. [2022-11-20 12:00:57,264 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 12:00:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 12:00:57,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-20 12:00:57,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 7 letters. [2022-11-20 12:00:57,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:00:57,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 7 letters. [2022-11-20 12:00:57,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:00:57,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 14 letters. [2022-11-20 12:00:57,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:00:57,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2022-11-20 12:00:57,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-20 12:00:57,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 36 transitions. [2022-11-20 12:00:57,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 12:00:57,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-20 12:00:57,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2022-11-20 12:00:57,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:00:57,273 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-11-20 12:00:57,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2022-11-20 12:00:57,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2022-11-20 12:00:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 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 12:00:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-11-20 12:00:57,276 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-20 12:00:57,276 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-20 12:00:57,276 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:00:57,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2022-11-20 12:00:57,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:00:57,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:00:57,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:00:57,278 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 12:00:57,278 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:00:57,278 INFO L748 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 129#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 131#L21-2 assume !!(0 != main_~y~0#1); 133#L21 assume main_~y~0#1 > 0; 123#L22 [2022-11-20 12:00:57,278 INFO L750 eck$LassoCheckResult]: Loop: 123#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 124#L22-2 assume !(0 == 1 + main_~y~0#1);main_#t~nondet2#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_#t~nondet2#1 >= main_~y~0#1 && main_#t~nondet2#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1); 137#L22-4 main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 135#L21-2 assume !!(0 != main_~y~0#1); 136#L21 assume main_~y~0#1 > 0; 123#L22 [2022-11-20 12:00:57,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:57,279 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2022-11-20 12:00:57,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:57,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941924296] [2022-11-20 12:00:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:57,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash 55505120, now seen corresponding path program 1 times [2022-11-20 12:00:57,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:57,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646723383] [2022-11-20 12:00:57,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash 2129702390, now seen corresponding path program 1 times [2022-11-20 12:00:57,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:57,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960420158] [2022-11-20 12:00:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:57,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:57,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:00:57 BoogieIcfgContainer [2022-11-20 12:00:57,496 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:00:57,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:00:57,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:00:57,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:00:57,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:55" (3/4) ... [2022-11-20 12:00:57,500 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:00:57,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:00:57,501 INFO L158 Benchmark]: Toolchain (without parser) took 2169.75ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 110.6MB in the end (delta: 13.6MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-11-20 12:00:57,502 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory was 138.9MB in the beginning and 138.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:00:57,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.24ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 115.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:00:57,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.71ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 113.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:00:57,504 INFO L158 Benchmark]: Boogie Preprocessor took 22.35ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 112.3MB in the end (delta: 809.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:00:57,504 INFO L158 Benchmark]: RCFGBuilder took 275.03ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 102.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:00:57,505 INFO L158 Benchmark]: BuchiAutomizer took 1625.87ms. Allocated memory is still 167.8MB. Free memory was 102.6MB in the beginning and 110.6MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:00:57,505 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 167.8MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:00:57,507 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory was 138.9MB in the beginning and 138.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.24ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 115.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.71ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 113.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.35ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 112.3MB in the end (delta: 809.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 275.03ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 102.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1625.87ms. Allocated memory is still 167.8MB. Free memory was 102.6MB in the beginning and 110.6MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 167.8MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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, 10 StatesRemovedByMinimization, 1 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 15 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq118 hnf96 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 91ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y = 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_#t~nondet2#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;" Loop: "assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1);" "assume !(0 == 1 + main_~y~0#1);main_#t~nondet2#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_#t~nondet2#1 >= main_~y~0#1 && main_#t~nondet2#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_#t~nondet2#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1 + (1 + main_~y~0#1);" "main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_~x~0#1 - main_~y~0#1;" "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-20 12:00:57,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-20 12:00:57,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154377b9-f926-4b1b-a24d-166a0af2d04c/bin/uautomizer-ug76WZFUDN/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