./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-05-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-05-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d11e15e8bcfbd517dcefb1d328d6a6d50e47a913fcea0aff8a57d0ec0ff6fb76 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:58:18,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:58:18,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:58:18,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:58:18,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:58:18,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:58:18,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:58:18,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:58:18,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:58:18,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:58:18,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:58:18,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:58:18,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:58:18,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:58:18,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:58:18,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:58:18,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:58:18,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:58:18,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:58:18,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:58:18,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:58:18,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:58:18,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:58:18,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:58:18,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:58:18,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:58:18,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:58:18,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:58:18,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:58:18,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:58:18,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:58:18,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:58:18,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:58:18,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:58:18,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:58:18,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:58:18,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:58:18,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:58:18,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:58:18,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:58:18,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:58:18,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:58:18,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:58:18,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:58:18,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:58:18,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:58:18,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:58:18,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:58:18,187 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:58:18,188 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:58:18,188 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:58:18,188 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:58:18,189 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:58:18,189 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:58:18,190 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:58:18,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:58:18,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:58:18,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:58:18,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:58:18,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:58:18,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:58:18,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:58:18,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:58:18,192 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:58:18,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:58:18,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:58:18,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:58:18,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:58:18,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:58:18,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:58:18,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:58:18,195 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:58:18,195 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_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11e15e8bcfbd517dcefb1d328d6a6d50e47a913fcea0aff8a57d0ec0ff6fb76 [2021-11-20 06:58:18,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:58:18,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:58:18,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:58:18,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:58:18,495 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:58:18,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-bwb/and-05-false.c [2021-11-20 06:58:18,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/data/c3e0e2d7c/c6c0fe02ef1b4164871b6b83ef7a42c8/FLAG3d030c829 [2021-11-20 06:58:19,005 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:58:19,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/sv-benchmarks/c/termination-bwb/and-05-false.c [2021-11-20 06:58:19,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/data/c3e0e2d7c/c6c0fe02ef1b4164871b6b83ef7a42c8/FLAG3d030c829 [2021-11-20 06:58:19,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/data/c3e0e2d7c/c6c0fe02ef1b4164871b6b83ef7a42c8 [2021-11-20 06:58:19,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:58:19,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:58:19,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:58:19,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:58:19,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:58:19,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e24f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19, skipping insertion in model container [2021-11-20 06:58:19,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:58:19,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:58:19,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:58:19,621 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:58:19,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:58:19,644 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:58:19,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19 WrapperNode [2021-11-20 06:58:19,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:58:19,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:58:19,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:58:19,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:58:19,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,675 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2021-11-20 06:58:19,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:58:19,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:58:19,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:58:19,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:58:19,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:58:19,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:58:19,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:58:19,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:58:19,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (1/1) ... [2021-11-20 06:58:19,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:58:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:58:19,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:58:19,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:58:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:58:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:58:19,841 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:58:19,843 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:58:19,914 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:58:19,922 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:58:19,922 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:58:19,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:58:19 BoogieIcfgContainer [2021-11-20 06:58:19,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:58:19,926 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:58:19,926 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:58:19,930 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:58:19,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:58:19,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:58:19" (1/3) ... [2021-11-20 06:58:19,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72610de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:58:19, skipping insertion in model container [2021-11-20 06:58:19,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:58:19,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:58:19" (2/3) ... [2021-11-20 06:58:19,934 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72610de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:58:19, skipping insertion in model container [2021-11-20 06:58:19,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:58:19,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:58:19" (3/3) ... [2021-11-20 06:58:19,935 INFO L388 chiAutomizerObserver]: Analyzing ICFG and-05-false.c [2021-11-20 06:58:19,991 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:58:19,991 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:58:19,991 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:58:19,992 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:58:19,992 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:58:19,992 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:58:19,992 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:58:19,992 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:58:20,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:58:20,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 06:58:20,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:58:20,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:58:20,036 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:58:20,037 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 06:58:20,037 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:58:20,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:58:20,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 06:58:20,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:58:20,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:58:20,039 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:58:20,039 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 06:58:20,044 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~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#L16-2true [2021-11-20 06:58:20,044 INFO L793 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0);main_~x~0#1 := ~bitwiseAnd(main_~x~0#1 - 1, main_~y~0#1); 6#L16-2true [2021-11-20 06:58:20,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:58:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 06:58:20,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:58:20,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705511734] [2021-11-20 06:58:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:58:20,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:58:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:58:20,128 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:58:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:58:20,148 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:58:20,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:58:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-20 06:58:20,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:58:20,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610382991] [2021-11-20 06:58:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:58:20,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:58:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:58:20,164 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:58:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:58:20,168 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:58:20,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:58:20,170 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-20 06:58:20,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:58:20,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019789558] [2021-11-20 06:58:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:58:20,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:58:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:58:20,176 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:58:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:58:20,181 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:58:20,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:58:20 BoogieIcfgContainer [2021-11-20 06:58:20,239 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:58:20,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:58:20,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:58:20,240 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:58:20,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:58:19" (3/4) ... [2021-11-20 06:58:20,243 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:58:20,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:58:20,245 INFO L158 Benchmark]: Toolchain (without parser) took 829.61ms. Allocated memory is still 98.6MB. Free memory was 58.8MB in the beginning and 48.8MB in the end (delta: 10.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-11-20 06:58:20,245 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:58:20,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.04ms. Allocated memory is still 98.6MB. Free memory was 58.7MB in the beginning and 74.3MB in the end (delta: -15.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:58:20,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.58ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:58:20,248 INFO L158 Benchmark]: Boogie Preprocessor took 20.21ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 72.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:58:20,249 INFO L158 Benchmark]: RCFGBuilder took 226.80ms. Allocated memory is still 98.6MB. Free memory was 72.1MB in the beginning and 64.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:58:20,250 INFO L158 Benchmark]: BuchiAutomizer took 313.06ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 49.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:58:20,251 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 98.6MB. Free memory was 49.1MB in the beginning and 48.8MB in the end (delta: 391.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:58:20,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.04ms. Allocated memory is still 98.6MB. Free memory was 58.7MB in the beginning and 74.3MB in the end (delta: -15.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.58ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.21ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 72.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 226.80ms. Allocated memory is still 98.6MB. Free memory was 72.1MB in the beginning and 64.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 313.06ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 49.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 98.6MB. Free memory was 49.1MB in the beginning and 48.8MB in the end (delta: 391.2kB). 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 Trivial decomposition into one module whose termination is unknown. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: (x-1)&y [17] (Reason bitwiseAnd) 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_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~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;" Loop: "assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0);main_~x~0#1 := ~bitwiseAnd(main_~x~0#1 - 1, main_~y~0#1);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-11-20 06:58:20,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca641878-6aae-476e-b619-489da7f072e0/bin/uautomizer-DQz5hQGWxF/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN