./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 20:46:03,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:46:03,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:46:03,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:46:03,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:46:03,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:46:03,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:46:03,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:46:03,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:46:03,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:46:03,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:46:03,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:46:03,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:46:03,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:46:03,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:46:03,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:46:03,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:46:03,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:46:03,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:46:03,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:46:03,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:46:03,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:46:03,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:46:03,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:46:03,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:46:03,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:46:03,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:46:03,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:46:03,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:46:03,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:46:03,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:46:03,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:46:03,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:46:03,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:46:03,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:46:03,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:46:03,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:46:03,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:46:03,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:46:03,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:46:03,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:46:03,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:46:03,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:46:03,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:46:03,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:46:03,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:46:03,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:46:03,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:46:03,591 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:46:03,591 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:46:03,592 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:46:03,592 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:46:03,593 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:46:03,593 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:46:03,593 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:46:03,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:46:03,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:46:03,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:46:03,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:46:03,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:46:03,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:46:03,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:46:03,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:46:03,595 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:46:03,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:46:03,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:46:03,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:46:03,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:46:03,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:46:03,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:46:03,600 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:46:03,600 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_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae [2022-11-02 20:46:03,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:46:03,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:46:03,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:46:03,926 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:46:03,927 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:46:03,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-bwb/or-04.c [2022-11-02 20:46:03,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/data/b8caa53b1/2b76438383e0434a860e94f1b5becc33/FLAGece928f72 [2022-11-02 20:46:04,582 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:46:04,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/sv-benchmarks/c/termination-bwb/or-04.c [2022-11-02 20:46:04,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/data/b8caa53b1/2b76438383e0434a860e94f1b5becc33/FLAGece928f72 [2022-11-02 20:46:04,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/data/b8caa53b1/2b76438383e0434a860e94f1b5becc33 [2022-11-02 20:46:04,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:46:04,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:46:04,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:04,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:46:04,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:46:04,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:04" (1/1) ... [2022-11-02 20:46:04,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@906109e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:04, skipping insertion in model container [2022-11-02 20:46:04,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:04" (1/1) ... [2022-11-02 20:46:04,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:46:04,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:46:05,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:05,226 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:46:05,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:05,253 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:46:05,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05 WrapperNode [2022-11-02 20:46:05,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:05,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:05,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:46:05,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:46:05,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,287 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-02 20:46:05,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:05,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:46:05,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:46:05,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:46:05,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:46:05,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:46:05,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:46:05,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:46:05,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (1/1) ... [2022-11-02 20:46:05,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:46:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:05,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:05,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:46:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:46:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:46:05,470 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:46:05,473 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:46:05,623 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:46:05,630 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:46:05,630 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:46:05,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:05 BoogieIcfgContainer [2022-11-02 20:46:05,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:46:05,633 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:46:05,633 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:46:05,640 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:46:05,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:46:05,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:46:04" (1/3) ... [2022-11-02 20:46:05,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7153b1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:46:05, skipping insertion in model container [2022-11-02 20:46:05,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:46:05,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:05" (2/3) ... [2022-11-02 20:46:05,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7153b1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:46:05, skipping insertion in model container [2022-11-02 20:46:05,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:46:05,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:05" (3/3) ... [2022-11-02 20:46:05,645 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-04.c [2022-11-02 20:46:05,722 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:46:05,722 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:46:05,722 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:46:05,722 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:46:05,722 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:46:05,723 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:46:05,723 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:46:05,723 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:46:05,730 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) [2022-11-02 20:46:05,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:46:05,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:46:05,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:46:05,759 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:46:05,760 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:46:05,760 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:46:05,760 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) [2022-11-02 20:46:05,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:46:05,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:46:05,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:46:05,763 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:46:05,764 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:46:05,772 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#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; 5#L20-2true [2022-11-02 20:46:05,773 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 7#L21-2true assume !(0 != main_~y~0#1); 5#L20-2true [2022-11-02 20:46:05,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:05,786 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:46:05,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:05,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503756484] [2022-11-02 20:46:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:05,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:05,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:05,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:05,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2022-11-02 20:46:05,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:05,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380817170] [2022-11-02 20:46:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:05,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:06,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:06,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:06,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380817170] [2022-11-02 20:46:06,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380817170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:06,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:06,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:46:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118147788] [2022-11-02 20:46:06,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:06,025 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:46:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:06,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:06,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:06,069 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) [2022-11-02 20:46:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:46:06,127 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-11-02 20:46:06,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-11-02 20:46:06,130 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 20:46:06,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 9 transitions. [2022-11-02 20:46:06,135 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-02 20:46:06,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 20:46:06,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2022-11-02 20:46:06,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:06,151 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-02 20:46:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2022-11-02 20:46:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-02 20:46:06,177 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) [2022-11-02 20:46:06,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-11-02 20:46:06,179 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-02 20:46:06,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:06,184 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-02 20:46:06,185 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:46:06,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-11-02 20:46:06,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 20:46:06,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:46:06,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:46:06,186 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:46:06,186 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:46:06,187 INFO L748 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 31#L20-2 [2022-11-02 20:46:06,187 INFO L750 eck$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 := (if (1 == main_~y~0#1 || 0 == main_~y~0#1) && 0 == 1 + main_~y~0#1 then main_~y~0#1 else (if 0 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1) then 1 + main_~y~0#1 else (if (1 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1)) || ((1 == main_~y~0#1 || 0 == main_~y~0#1) && 1 == 1 + main_~y~0#1) then 1 else ~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 [2022-11-02 20:46:06,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:06,188 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-02 20:46:06,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:06,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382792674] [2022-11-02 20:46:06,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:06,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:06,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:06,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:06,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:06,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1271173, now seen corresponding path program 1 times [2022-11-02 20:46:06,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:06,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845217988] [2022-11-02 20:46:06,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:06,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:06,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:06,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:06,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash 889698375, now seen corresponding path program 1 times [2022-11-02 20:46:06,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:06,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286940896] [2022-11-02 20:46:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:06,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:06,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:06,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:06,426 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:46:06,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:46:06,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:46:06,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:46:06,427 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:46:06,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:46:06,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:46:06,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:46:06,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2022-11-02 20:46:06,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:46:06,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:46:06,456 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:46:06,542 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:46:06,545 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:46:06,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:46:06,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:06,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:06,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:46:06,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:46:06,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:46:06,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:46:06,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:46:06,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:06,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:06,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:46:06,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:46:06,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:46:06,679 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:46:06,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:46:06,689 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:46:06,689 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:46:06,689 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:46:06,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:46:06,690 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:46:06,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:46:06,690 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:46:06,690 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:46:06,690 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration2_Loop [2022-11-02 20:46:06,690 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:46:06,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:46:06,692 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:46:06,723 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:46:06,727 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:46:06,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:46:06,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:06,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:06,745 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 [2022-11-02 20:46:06,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:46:06,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:46:06,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:46:06,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:46:06,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:46:06,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:46:06,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:46:06,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:46:06,782 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:46:06,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:46:06,792 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:46:06,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:46:06,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:06,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:06,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:46:06,811 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:46:06,812 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:46:06,812 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:46:06,813 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 [] [2022-11-02 20:46:06,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:46:06,859 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:46:06,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:06,906 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:46:06,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:46:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:06,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:46:06,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:46:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:46:06,983 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 [2022-11-02 20:46:06,985 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) [2022-11-02 20:46:07,056 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. [2022-11-02 20:46:07,057 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 [2022-11-02 20:46:07,059 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) [2022-11-02 20:46:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-02 20:46:07,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-02 20:46:07,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:46:07,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-02 20:46:07,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:46:07,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-02 20:46:07,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:46:07,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2022-11-02 20:46:07,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-02 20:46:07,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 24 transitions. [2022-11-02 20:46:07,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-02 20:46:07,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-02 20:46:07,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2022-11-02 20:46:07,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:46:07,071 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-11-02 20:46:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2022-11-02 20:46:07,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2022-11-02 20:46:07,073 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) [2022-11-02 20:46:07,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-11-02 20:46:07,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-02 20:46:07,074 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-02 20:46:07,074 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:46:07,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2022-11-02 20:46:07,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 20:46:07,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:46:07,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:46:07,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-02 20:46:07,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:46:07,077 INFO L748 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 95#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 97#L21-2 assume !!(0 != main_~y~0#1); 99#L21 assume main_~y~0#1 > 0;main_~y~0#1 := (if (1 == main_~y~0#1 || 0 == main_~y~0#1) && 0 == 1 + main_~y~0#1 then main_~y~0#1 else (if 0 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1) then 1 + main_~y~0#1 else (if (1 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1)) || ((1 == main_~y~0#1 || 0 == main_~y~0#1) && 1 == 1 + main_~y~0#1) then 1 else ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1))));main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 100#L21-2 [2022-11-02 20:46:07,077 INFO L750 eck$LassoCheckResult]: Loop: 100#L21-2 assume !!(0 != main_~y~0#1); 103#L21 assume main_~y~0#1 > 0;main_~y~0#1 := (if (1 == main_~y~0#1 || 0 == main_~y~0#1) && 0 == 1 + main_~y~0#1 then main_~y~0#1 else (if 0 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1) then 1 + main_~y~0#1 else (if (1 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1)) || ((1 == main_~y~0#1 || 0 == main_~y~0#1) && 1 == 1 + main_~y~0#1) then 1 else ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1))));main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 100#L21-2 [2022-11-02 20:46:07,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2022-11-02 20:46:07,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:07,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470580345] [2022-11-02 20:46:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:07,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1604, now seen corresponding path program 1 times [2022-11-02 20:46:07,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661089693] [2022-11-02 20:46:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:07,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845934, now seen corresponding path program 2 times [2022-11-02 20:46:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:07,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638497651] [2022-11-02 20:46:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:07,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:46:07 BoogieIcfgContainer [2022-11-02 20:46:07,322 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:46:07,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:46:07,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:46:07,323 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:46:07,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:05" (3/4) ... [2022-11-02 20:46:07,326 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:46:07,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:46:07,328 INFO L158 Benchmark]: Toolchain (without parser) took 2371.62ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 83.4MB in the beginning and 69.7MB in the end (delta: 13.7MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-11-02 20:46:07,328 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:07,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.85ms. Allocated memory is still 111.1MB. Free memory was 83.2MB in the beginning and 86.5MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:46:07,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 111.1MB. Free memory was 86.3MB in the beginning and 85.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:07,331 INFO L158 Benchmark]: Boogie Preprocessor took 22.20ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 84.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:46:07,332 INFO L158 Benchmark]: RCFGBuilder took 320.54ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 75.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:46:07,333 INFO L158 Benchmark]: BuchiAutomizer took 1688.66ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 75.4MB in the beginning and 70.2MB in the end (delta: 5.2MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2022-11-02 20:46:07,334 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 140.5MB. Free memory was 70.2MB in the beginning and 69.7MB in the end (delta: 447.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:07,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.85ms. Allocated memory is still 111.1MB. Free memory was 83.2MB in the beginning and 86.5MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 111.1MB. Free memory was 86.3MB in the beginning and 85.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.20ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 84.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 320.54ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 75.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1688.66ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 75.4MB in the beginning and 70.2MB in the end (delta: 5.2MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 140.5MB. Free memory was 70.2MB in the beginning and 69.7MB in the end (delta: 447.7kB). 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 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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 -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, 9 SdHoareTripleChecker+Valid, 0.1s 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: 84ms 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+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 := (if (1 == main_~y~0#1 || 0 == main_~y~0#1) && 0 == 1 + main_~y~0#1 then main_~y~0#1 else (if 0 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1) then 1 + main_~y~0#1 else (if (1 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1)) || ((1 == main_~y~0#1 || 0 == main_~y~0#1) && 1 == 1 + main_~y~0#1) then 1 else ~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 := (if (1 == main_~y~0#1 || 0 == main_~y~0#1) && 0 == 1 + main_~y~0#1 then main_~y~0#1 else (if 0 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1) then 1 + main_~y~0#1 else (if (1 == main_~y~0#1 && (1 == 1 + main_~y~0#1 || 0 == 1 + main_~y~0#1)) || ((1 == main_~y~0#1 || 0 == main_~y~0#1) && 1 == 1 + main_~y~0#1) then 1 else ~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 [2022-11-02 20:46:07,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:46:07,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/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_4cd2db63-b2b6-4b38-a447-2acff799567e/bin/uautomizer-Dbtcem3rbc/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