./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:44:11,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:44:11,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:44:11,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:44:11,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:44:11,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:44:11,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:44:11,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:44:11,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:44:11,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:44:11,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:44:11,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:44:11,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:44:11,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:44:11,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:44:11,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:44:11,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:44:11,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:44:11,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:44:11,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:44:11,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:44:11,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:44:11,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:44:11,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:44:11,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:44:11,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:44:11,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:44:11,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:44:11,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:44:11,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:44:11,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:44:11,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:44:11,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:44:11,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:44:11,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:44:11,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:44:11,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:44:11,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:44:11,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:44:11,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:44:11,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:44:11,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:44:11,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:44:11,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:44:11,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:44:11,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:44:11,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:44:11,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:44:11,329 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:44:11,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:44:11,329 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:44:11,330 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:44:11,331 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:44:11,331 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:44:11,331 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:44:11,331 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:44:11,332 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:44:11,332 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:44:11,332 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:44:11,332 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:44:11,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:44:11,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:44:11,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:44:11,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:44:11,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:44:11,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:44:11,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:44:11,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:44:11,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:44:11,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:44:11,337 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:44:11,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:44:11,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:44:11,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:44:11,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:44:11,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:44:11,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:44:11,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:44:11,339 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:44:11,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:44:11,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:44:11,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:44:11,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:44:11,340 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2021-11-21 00:44:11,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:44:11,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:44:11,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:44:11,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:44:11,685 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:44:11,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2021-11-21 00:44:11,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/385d1dc17/0ff48ce5d37341d2b85b7f1f03e7df66/FLAGcf541282c [2021-11-21 00:44:12,279 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:44:12,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2021-11-21 00:44:12,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/385d1dc17/0ff48ce5d37341d2b85b7f1f03e7df66/FLAGcf541282c [2021-11-21 00:44:12,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/385d1dc17/0ff48ce5d37341d2b85b7f1f03e7df66 [2021-11-21 00:44:12,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:44:12,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:44:12,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:44:12,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:44:12,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:44:12,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:12,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b747c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12, skipping insertion in model container [2021-11-21 00:44:12,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:12,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:44:12,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:44:12,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2021-11-21 00:44:12,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:44:12,892 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:44:12,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2021-11-21 00:44:12,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:44:12,936 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:44:12,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12 WrapperNode [2021-11-21 00:44:12,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:44:12,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:44:12,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:44:12,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:44:12,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:12,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:12,986 INFO L137 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2021-11-21 00:44:12,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:44:12,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:44:12,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:44:12,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:44:12,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:12,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:13,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:13,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:13,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:13,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:13,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:13,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:44:13,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:44:13,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:44:13,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:44:13,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (1/1) ... [2021-11-21 00:44:13,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:44:13,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:44:13,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:44:13,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:44:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:44:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:44:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:44:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 00:44:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:44:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 00:44:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:44:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:44:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:44:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:44:13,200 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:44:13,201 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:44:13,465 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:44:13,534 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:44:13,534 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-21 00:44:13,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:44:13 BoogieIcfgContainer [2021-11-21 00:44:13,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:44:13,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:44:13,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:44:13,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:44:13,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:44:12" (1/3) ... [2021-11-21 00:44:13,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7db8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:44:13, skipping insertion in model container [2021-11-21 00:44:13,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:12" (2/3) ... [2021-11-21 00:44:13,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7db8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:44:13, skipping insertion in model container [2021-11-21 00:44:13,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:44:13" (3/3) ... [2021-11-21 00:44:13,545 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2021-11-21 00:44:13,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:44:13,556 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:44:13,623 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:44:13,635 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:44:13,635 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:44:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2021-11-21 00:44:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:44:13,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:13,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:13,674 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:13,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:13,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1810710899, now seen corresponding path program 1 times [2021-11-21 00:44:13,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:44:13,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081826370] [2021-11-21 00:44:13,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:13,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:44:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:44:13,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:13,847 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:44:13,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081826370] [2021-11-21 00:44:13,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081826370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:44:13,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:44:13,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:44:13,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536513217] [2021-11-21 00:44:13,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:44:13,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:44:13,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:44:13,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:44:13,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:44:13,893 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:13,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:44:13,947 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2021-11-21 00:44:13,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:44:13,950 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Word has length 9 [2021-11-21 00:44:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:44:13,958 INFO L225 Difference]: With dead ends: 43 [2021-11-21 00:44:13,959 INFO L226 Difference]: Without dead ends: 20 [2021-11-21 00:44:13,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:44:13,965 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:44:13,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:44:13,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-21 00:44:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-21 00:44:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-11-21 00:44:14,000 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 9 [2021-11-21 00:44:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:44:14,001 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-11-21 00:44:14,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2021-11-21 00:44:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 00:44:14,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:14,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:14,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:44:14,004 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:14,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1732446686, now seen corresponding path program 1 times [2021-11-21 00:44:14,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:44:14,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487371103] [2021-11-21 00:44:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:14,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:44:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:44:14,075 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:44:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:44:14,157 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 00:44:14,157 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:44:14,159 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:44:14,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:44:14,169 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 00:44:14,174 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:44:14,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:44:14 BoogieIcfgContainer [2021-11-21 00:44:14,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:44:14,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:44:14,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:44:14,229 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:44:14,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:44:13" (3/4) ... [2021-11-21 00:44:14,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 00:44:14,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:44:14,234 INFO L158 Benchmark]: Toolchain (without parser) took 1604.31ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 82.4MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:44:14,235 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:44:14,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.40ms. Allocated memory is still 107.0MB. Free memory was 66.8MB in the beginning and 80.4MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:44:14,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.17ms. Allocated memory is still 107.0MB. Free memory was 80.4MB in the beginning and 78.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:44:14,240 INFO L158 Benchmark]: Boogie Preprocessor took 51.66ms. Allocated memory is still 107.0MB. Free memory was 78.7MB in the beginning and 77.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:44:14,244 INFO L158 Benchmark]: RCFGBuilder took 497.73ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 63.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-21 00:44:14,246 INFO L158 Benchmark]: TraceAbstraction took 689.67ms. Allocated memory is still 107.0MB. Free memory was 63.0MB in the beginning and 82.8MB in the end (delta: -19.8MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2021-11-21 00:44:14,247 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 107.0MB. Free memory was 82.7MB in the beginning and 82.4MB in the end (delta: 307.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:44:14,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.40ms. Allocated memory is still 107.0MB. Free memory was 66.8MB in the beginning and 80.4MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.17ms. Allocated memory is still 107.0MB. Free memory was 80.4MB in the beginning and 78.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.66ms. Allocated memory is still 107.0MB. Free memory was 78.7MB in the beginning and 77.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 497.73ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 63.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 689.67ms. Allocated memory is still 107.0MB. Free memory was 63.0MB in the beginning and 82.8MB in the end (delta: -19.8MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 107.0MB. Free memory was 82.7MB in the beginning and 82.4MB in the end (delta: 307.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 93]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 92, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45. Possible FailurePath: [L88] double x = 0.0; [L89] CALL, EXPR round_double(x) [L20] __int32_t msw, exponent_less_1023; [L21] __uint32_t lsw; VAL [\old(x)=0, x=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=0, exponent_less_1023=52, lsw=1127219201, msw=0, x=0] [L29] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=0, exponent_less_1023=52, lsw=1127219201, msw=0, x=0] [L43] COND TRUE exponent_less_1023 > 51 [L44] COND FALSE !(exponent_less_1023 == 1024) [L47] return x; VAL [\old(x)=0, \result=0, exponent_less_1023=52, lsw=1127219201, msw=0, x=0] [L89] RET, EXPR round_double(x) [L89] double res = round_double(x); [L92] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L92] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L93] reach_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-21 00:44:14,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:44:16,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:44:16,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:44:16,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:44:16,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:44:16,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:44:16,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:44:16,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:44:16,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:44:16,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:44:16,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:44:16,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:44:16,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:44:16,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:44:16,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:44:16,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:44:16,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:44:16,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:44:16,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:44:16,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:44:16,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:44:16,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:44:16,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:44:16,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:44:16,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:44:16,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:44:16,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:44:16,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:44:16,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:44:16,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:44:16,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:44:16,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:44:16,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:44:16,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:44:16,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:44:16,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:44:16,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:44:16,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:44:16,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:44:16,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:44:16,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:44:16,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 00:44:16,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:44:16,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:44:16,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:44:16,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:44:16,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:44:16,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:44:16,859 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:44:16,859 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:44:16,860 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:44:16,860 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:44:16,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:44:16,861 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:44:16,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:44:16,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:44:16,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:44:16,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:44:16,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:44:16,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:44:16,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:44:16,864 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:44:16,864 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:44:16,865 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:44:16,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:44:16,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:44:16,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:44:16,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:44:16,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:44:16,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:44:16,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:44:16,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:44:16,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:44:16,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:44:16,867 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:44:16,868 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:44:16,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:44:16,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:44:16,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:44:16,869 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2021-11-21 00:44:17,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:44:17,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:44:17,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:44:17,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:44:17,281 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:44:17,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2021-11-21 00:44:17,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/d47bca1e3/8912c1dcc4534166b385d3c1a160f3ea/FLAG23019f692 [2021-11-21 00:44:17,849 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:44:17,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2021-11-21 00:44:17,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/d47bca1e3/8912c1dcc4534166b385d3c1a160f3ea/FLAG23019f692 [2021-11-21 00:44:18,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/data/d47bca1e3/8912c1dcc4534166b385d3c1a160f3ea [2021-11-21 00:44:18,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:44:18,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:44:18,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:44:18,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:44:18,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:44:18,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5782d371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18, skipping insertion in model container [2021-11-21 00:44:18,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:44:18,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:44:18,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2021-11-21 00:44:18,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:44:18,481 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:44:18,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2021-11-21 00:44:18,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:44:18,541 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:44:18,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18 WrapperNode [2021-11-21 00:44:18,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:44:18,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:44:18,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:44:18,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:44:18,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,629 INFO L137 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2021-11-21 00:44:18,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:44:18,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:44:18,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:44:18,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:44:18,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:44:18,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:44:18,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:44:18,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:44:18,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (1/1) ... [2021-11-21 00:44:18,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:44:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:44:18,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:44:18,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:44:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:44:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-21 00:44:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-21 00:44:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:44:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:44:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:44:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:44:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:44:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:44:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:44:18,907 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:44:18,923 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:44:19,328 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:44:19,333 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:44:19,334 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-21 00:44:19,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:44:19 BoogieIcfgContainer [2021-11-21 00:44:19,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:44:19,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:44:19,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:44:19,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:44:19,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:44:18" (1/3) ... [2021-11-21 00:44:19,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294220d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:44:19, skipping insertion in model container [2021-11-21 00:44:19,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:44:18" (2/3) ... [2021-11-21 00:44:19,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294220d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:44:19, skipping insertion in model container [2021-11-21 00:44:19,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:44:19" (3/3) ... [2021-11-21 00:44:19,346 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2021-11-21 00:44:19,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:44:19,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:44:19,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:44:19,421 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:44:19,422 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:44:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 29 states have internal predecessors, (45), 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) [2021-11-21 00:44:19,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:44:19,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:19,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:19,442 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:19,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:19,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2068179301, now seen corresponding path program 1 times [2021-11-21 00:44:19,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:44:19,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420872021] [2021-11-21 00:44:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:19,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:44:19,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:44:19,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:44:19,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:44:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:44:19,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 00:44:19,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:44:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:19,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:44:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:19,666 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:44:19,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420872021] [2021-11-21 00:44:19,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420872021] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:44:19,667 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:44:19,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:44:19,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177022413] [2021-11-21 00:44:19,670 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:44:19,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:44:19,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:44:19,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:44:19,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:44:19,718 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 29 states have internal predecessors, (45), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 00:44:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:44:19,734 INFO L93 Difference]: Finished difference Result 58 states and 88 transitions. [2021-11-21 00:44:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:44:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11 [2021-11-21 00:44:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:44:19,745 INFO L225 Difference]: With dead ends: 58 [2021-11-21 00:44:19,745 INFO L226 Difference]: Without dead ends: 27 [2021-11-21 00:44:19,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:44:19,752 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:44:19,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:44:19,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-21 00:44:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-21 00:44:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-21 00:44:19,795 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 11 [2021-11-21 00:44:19,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:44:19,796 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-21 00:44:19,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 00:44:19,797 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2021-11-21 00:44:19,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 00:44:19,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:19,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:19,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-21 00:44:19,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:44:19,999 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:20,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:20,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1606867070, now seen corresponding path program 1 times [2021-11-21 00:44:20,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:44:20,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361434412] [2021-11-21 00:44:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:20,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:44:20,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:44:20,004 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:44:20,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:44:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:44:20,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:44:20,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:44:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:20,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:44:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:20,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:44:20,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361434412] [2021-11-21 00:44:20,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361434412] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:44:20,448 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:44:20,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 00:44:20,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429971739] [2021-11-21 00:44:20,449 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:44:20,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:44:20,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:44:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:44:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:44:20,452 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:44:20,639 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2021-11-21 00:44:20,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:44:20,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-21 00:44:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:44:20,642 INFO L225 Difference]: With dead ends: 52 [2021-11-21 00:44:20,642 INFO L226 Difference]: Without dead ends: 39 [2021-11-21 00:44:20,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:44:20,645 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:44:20,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 128 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2021-11-21 00:44:20,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-21 00:44:20,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2021-11-21 00:44:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 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) [2021-11-21 00:44:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2021-11-21 00:44:20,652 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 12 [2021-11-21 00:44:20,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:44:20,652 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-11-21 00:44:20,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:20,653 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2021-11-21 00:44:20,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 00:44:20,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:20,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:20,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:44:20,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:44:20,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:20,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:20,868 INFO L85 PathProgramCache]: Analyzing trace with hash -504714538, now seen corresponding path program 1 times [2021-11-21 00:44:20,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:44:20,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807494712] [2021-11-21 00:44:20,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:20,872 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:44:20,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:44:20,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:44:20,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:44:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:44:20,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:44:20,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:44:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:21,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:44:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:21,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:44:21,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807494712] [2021-11-21 00:44:21,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807494712] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:44:21,265 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:44:21,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 00:44:21,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276697334] [2021-11-21 00:44:21,266 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:44:21,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:44:21,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:44:21,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:44:21,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:44:21,268 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:44:21,350 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2021-11-21 00:44:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:44:21,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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) Word has length 12 [2021-11-21 00:44:21,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:44:21,354 INFO L225 Difference]: With dead ends: 51 [2021-11-21 00:44:21,354 INFO L226 Difference]: Without dead ends: 34 [2021-11-21 00:44:21,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:44:21,356 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 30 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:44:21,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 131 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2021-11-21 00:44:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-21 00:44:21,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 21. [2021-11-21 00:44:21,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2021-11-21 00:44:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-21 00:44:21,366 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-11-21 00:44:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:44:21,366 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-21 00:44:21,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-21 00:44:21,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 00:44:21,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:21,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:21,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-21 00:44:21,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:44:21,586 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:21,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:21,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1962860917, now seen corresponding path program 1 times [2021-11-21 00:44:21,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:44:21,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963861301] [2021-11-21 00:44:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:21,587 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:44:21,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:44:21,588 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:44:21,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:44:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:44:21,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:44:21,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:44:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:21,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:44:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:21,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:44:21,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963861301] [2021-11-21 00:44:21,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963861301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:44:21,927 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:44:21,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 00:44:21,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20604816] [2021-11-21 00:44:21,928 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:44:21,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:44:21,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:44:21,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:44:21,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:44:21,929 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:21,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:44:21,963 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2021-11-21 00:44:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:44:21,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-21 00:44:21,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:44:21,964 INFO L225 Difference]: With dead ends: 34 [2021-11-21 00:44:21,965 INFO L226 Difference]: Without dead ends: 21 [2021-11-21 00:44:21,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:44:21,966 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:44:21,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-21 00:44:21,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-21 00:44:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-21 00:44:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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) [2021-11-21 00:44:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-21 00:44:21,971 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 16 [2021-11-21 00:44:21,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:44:21,972 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-21 00:44:21,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:21,972 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-21 00:44:21,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 00:44:21,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:21,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:21,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:44:22,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:44:22,186 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1282802547, now seen corresponding path program 1 times [2021-11-21 00:44:22,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:44:22,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363386074] [2021-11-21 00:44:22,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:22,188 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:44:22,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:44:22,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:44:22,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 00:44:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:44:22,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:44:22,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:44:22,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2021-11-21 00:44:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:22,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:44:22,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2021-11-21 00:44:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:22,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:44:22,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363386074] [2021-11-21 00:44:22,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363386074] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:44:22,590 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:44:22,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-21 00:44:22,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189934056] [2021-11-21 00:44:22,591 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:44:22,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 00:44:22,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:44:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 00:44:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:44:22,593 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:22,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:44:22,843 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-11-21 00:44:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:44:22,844 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-21 00:44:22,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:44:22,844 INFO L225 Difference]: With dead ends: 24 [2021-11-21 00:44:22,844 INFO L226 Difference]: Without dead ends: 21 [2021-11-21 00:44:22,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-11-21 00:44:22,846 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:44:22,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 44 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 8 Unchecked, 0.1s Time] [2021-11-21 00:44:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-21 00:44:22,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-21 00:44:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 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) [2021-11-21 00:44:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2021-11-21 00:44:22,850 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2021-11-21 00:44:22,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:44:22,851 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2021-11-21 00:44:22,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:44:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2021-11-21 00:44:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 00:44:22,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:44:22,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:44:22,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:44:23,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:44:23,056 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:44:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:44:23,056 INFO L85 PathProgramCache]: Analyzing trace with hash 218634850, now seen corresponding path program 1 times [2021-11-21 00:44:23,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:44:23,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373236310] [2021-11-21 00:44:23,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:44:23,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:44:23,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:44:23,058 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:44:23,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 00:44:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:44:23,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-21 00:44:23,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:44:23,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-21 00:44:23,645 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-21 00:44:23,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 89 [2021-11-21 00:44:24,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:44:24,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 39 [2021-11-21 00:44:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:24,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:44:27,155 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:44:27,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 117 treesize of output 96 [2021-11-21 00:44:27,174 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:44:27,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 94 [2021-11-21 00:44:27,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-21 00:44:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:44:27,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:44:27,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373236310] [2021-11-21 00:44:27,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373236310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:44:27,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:44:27,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2021-11-21 00:44:27,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439589498] [2021-11-21 00:44:27,431 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:44:27,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 00:44:27,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:44:27,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 00:44:27,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=264, Unknown=1, NotChecked=0, Total=306 [2021-11-21 00:44:27,433 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 18 states, 18 states have (on average 2.0) internal successors, (36), 18 states have internal predecessors, (36), 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) [2021-11-21 00:44:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:44:27,590 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-11-21 00:44:27,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 00:44:27,591 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 18 states have internal predecessors, (36), 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) Word has length 20 [2021-11-21 00:44:27,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:44:27,591 INFO L225 Difference]: With dead ends: 21 [2021-11-21 00:44:27,592 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 00:44:27,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=53, Invalid=326, Unknown=1, NotChecked=0, Total=380 [2021-11-21 00:44:27,593 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:44:27,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 82 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 35 Unchecked, 0.0s Time] [2021-11-21 00:44:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 00:44:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 00:44:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-21 00:44:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 00:44:27,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-11-21 00:44:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:44:27,595 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 00:44:27,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 18 states have internal predecessors, (36), 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) [2021-11-21 00:44:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 00:44:27,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 00:44:27,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:44:27,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:44:27,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:44:27,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 00:44:27,869 INFO L861 garLoopResultBuilder]: At program point L97(lines 80 98) the Hoare annotation is: true [2021-11-21 00:44:27,869 INFO L858 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2021-11-21 00:44:27,870 INFO L854 garLoopResultBuilder]: At program point L77(lines 68 78) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short10#1| (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|) (bvslt |ULTIMATE.start_round_double_~exponent_less_1023~0#1| (_ bv20 32)) (fp.eq |ULTIMATE.start_round_double_~x#1| (_ +zero 11 53)) (fp.eq |ULTIMATE.start_round_double_#res#1| (_ +zero 11 53))) [2021-11-21 00:44:27,870 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 47) no Hoare annotation was computed. [2021-11-21 00:44:27,870 INFO L854 garLoopResultBuilder]: At program point L65(lines 19 66) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (let ((.cse2 (select |#memory_int| |v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11|))) (let ((.cse0 (select .cse2 (_ bv4 32)))) (and (= .cse0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|))) (= (let ((.cse1 (concat .cse0 (select .cse2 (_ bv0 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) |ULTIMATE.start_round_double_#res#1|))))) (bvslt |ULTIMATE.start_round_double_~exponent_less_1023~0#1| (_ bv20 32)) (fp.eq |ULTIMATE.start_round_double_~x#1| (_ +zero 11 53)) (fp.eq |ULTIMATE.start_round_double_#res#1| (_ +zero 11 53))) [2021-11-21 00:44:27,870 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 33) no Hoare annotation was computed. [2021-11-21 00:44:27,870 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 00:44:27,871 INFO L858 garLoopResultBuilder]: For program point L32-2(lines 32 33) no Hoare annotation was computed. [2021-11-21 00:44:27,871 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 00:44:27,871 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 00:44:27,871 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2021-11-21 00:44:27,871 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-21 00:44:27,872 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 00:44:27,872 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 58) no Hoare annotation was computed. [2021-11-21 00:44:27,872 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 55) no Hoare annotation was computed. [2021-11-21 00:44:27,872 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 55) no Hoare annotation was computed. [2021-11-21 00:44:27,872 INFO L858 garLoopResultBuilder]: For program point L71-1(lines 71 75) no Hoare annotation was computed. [2021-11-21 00:44:27,873 INFO L854 garLoopResultBuilder]: At program point L71-2(lines 71 75) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short10#1| (exists ((|v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (let ((.cse2 (select |#memory_int| |v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11|))) (let ((.cse0 (select .cse2 (_ bv4 32)))) (and (= .cse0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (let ((.cse1 (concat .cse0 (select .cse2 (_ bv0 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) |ULTIMATE.start___signbit_double_~x#1|) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|))))))) (bvslt |ULTIMATE.start_round_double_~exponent_less_1023~0#1| (_ bv20 32)) (fp.eq |ULTIMATE.start_round_double_~x#1| (_ +zero 11 53)) (fp.eq |ULTIMATE.start_round_double_#res#1| (_ +zero 11 53))) [2021-11-21 00:44:27,873 INFO L858 garLoopResultBuilder]: For program point L71-3(lines 71 75) no Hoare annotation was computed. [2021-11-21 00:44:27,873 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 42) no Hoare annotation was computed. [2021-11-21 00:44:27,873 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-21 00:44:27,873 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2021-11-21 00:44:27,874 INFO L858 garLoopResultBuilder]: For program point L59-1(lines 19 66) no Hoare annotation was computed. [2021-11-21 00:44:27,874 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 92 95) no Hoare annotation was computed. [2021-11-21 00:44:27,874 INFO L858 garLoopResultBuilder]: For program point L59-2(lines 59 64) no Hoare annotation was computed. [2021-11-21 00:44:27,874 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2021-11-21 00:44:27,874 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (= (_ +zero 11 53) |ULTIMATE.start_round_double_~x#1|) [2021-11-21 00:44:27,875 INFO L858 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2021-11-21 00:44:27,875 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-11-21 00:44:27,875 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 58) no Hoare annotation was computed. [2021-11-21 00:44:27,878 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-21 00:44:27,880 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:44:27,887 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,888 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,888 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:44:27 BoogieIcfgContainer [2021-11-21 00:44:27,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:44:27,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:44:27,912 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:44:27,912 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:44:27,913 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:44:19" (3/4) ... [2021-11-21 00:44:27,916 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:44:27,927 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-21 00:44:27,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-21 00:44:27,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 00:44:27,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:44:27,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11 : bv32, v_skolemized_q#valueAsBitvector_8 : bv64 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] == v_skolemized_q#valueAsBitvector_8[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0])) && ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[51:0]) == \result) && ~bvslt32(exponent_less_1023, 20bv32)) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~Pluszero~LONGDOUBLE()) [2021-11-21 00:44:27,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && (\exists v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11 : bv32, v_skolemized_q#valueAsBitvector_8 : bv64 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[51:0]) == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]))) && ~bvslt32(exponent_less_1023, 20bv32)) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~Pluszero~LONGDOUBLE()) [2021-11-21 00:44:27,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result) && ~bvslt32(exponent_less_1023, 20bv32)) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~Pluszero~LONGDOUBLE()) [2021-11-21 00:44:27,970 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:44:27,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:44:27,971 INFO L158 Benchmark]: Toolchain (without parser) took 9754.64ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 36.0MB in the beginning and 35.1MB in the end (delta: 954.3kB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2021-11-21 00:44:27,971 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:44:27,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.14ms. Allocated memory is still 71.3MB. Free memory was 35.8MB in the beginning and 55.5MB in the end (delta: -19.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-21 00:44:27,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.78ms. Allocated memory is still 71.3MB. Free memory was 55.4MB in the beginning and 53.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:44:27,973 INFO L158 Benchmark]: Boogie Preprocessor took 54.85ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 52.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:44:27,973 INFO L158 Benchmark]: RCFGBuilder took 649.97ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 39.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 00:44:27,973 INFO L158 Benchmark]: TraceAbstraction took 8574.42ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 38.8MB in the beginning and 38.9MB in the end (delta: -160.6kB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-11-21 00:44:27,974 INFO L158 Benchmark]: Witness Printer took 58.33ms. Allocated memory is still 94.4MB. Free memory was 38.9MB in the beginning and 35.1MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 00:44:27,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.14ms. Allocated memory is still 71.3MB. Free memory was 35.8MB in the beginning and 55.5MB in the end (delta: -19.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.78ms. Allocated memory is still 71.3MB. Free memory was 55.4MB in the beginning and 53.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.85ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 52.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 649.97ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 39.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8574.42ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 38.8MB in the beginning and 38.9MB in the end (delta: -160.6kB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Witness Printer took 58.33ms. Allocated memory is still 94.4MB. Free memory was 38.9MB in the beginning and 35.1MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 492 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 78 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 142 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 117 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 155 HoareAnnotationTreeSize, 5 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 162 ConstructedInterpolants, 48 QuantifiedInterpolants, 1776 SizeOfPredicates, 42 NumberOfNonLiveVariables, 269 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 71]: Loop Invariant [2021-11-21 00:44:27,990 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,990 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,990 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,990 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && (\exists v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11 : bv32, v_skolemized_q#valueAsBitvector_8 : bv64 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[51:0]) == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]))) && ~bvslt32(exponent_less_1023, 20bv32)) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result) && ~bvslt32(exponent_less_1023, 20bv32)) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant [2021-11-21 00:44:27,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:27,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,999 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,999 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,999 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:27,999 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:28,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:28,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:28,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:28,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:28,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:44:28,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:28,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:28,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:28,002 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:28,002 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] [2021-11-21 00:44:28,002 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11,QUANTIFIED] Derived loop invariant: (((\exists v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11 : bv32, v_skolemized_q#valueAsBitvector_8 : bv64 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] == v_skolemized_q#valueAsBitvector_8[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0])) && ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_round_double_~#iw_u~0#1.base_11][0bv32])[51:0]) == \result) && ~bvslt32(exponent_less_1023, 20bv32)) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2021-11-21 00:44:28,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2850f8a-96f8-4c86-9725-493faa3296cc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE