./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG --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 b4c4b31312aaf2dab8a1f8e232bdad89f6cd3959f42d2f0aaf79327a3fd01ffb .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG --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 b4c4b31312aaf2dab8a1f8e232bdad89f6cd3959f42d2f0aaf79327a3fd01ffb ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:58:31,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:58:31,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:58:31,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:58:31,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:58:31,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:58:31,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:58:31,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:58:31,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:58:31,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:58:31,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:58:31,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:58:31,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:58:31,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:58:31,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:58:31,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:58:31,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:58:31,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:58:31,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:58:31,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:58:31,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:58:31,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:58:31,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:58:31,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:58:31,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:58:31,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:58:31,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:58:31,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:58:31,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:58:31,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:58:31,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:58:31,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:58:31,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:58:31,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:58:31,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:58:31,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:58:31,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:58:31,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:58:31,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:58:31,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:58:31,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:58:31,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:58:31,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:58:31,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:58:31,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:58:31,541 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:58:31,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:58:31,541 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:58:31,542 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:58:31,542 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:58:31,542 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:58:31,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:58:31,542 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:58:31,542 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:58:31,543 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:58:31,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:58:31,543 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:58:31,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:58:31,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:58:31,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:58:31,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:58:31,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:58:31,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:58:31,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:58:31,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:58:31,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:58:31,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:58:31,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:58:31,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:58:31,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:58:31,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:58:31,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:58:31,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:58:31,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:58:31,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:58:31,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:58:31,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:58:31,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:58:31,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:58:31,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:58:31,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:58:31,549 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_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4c4b31312aaf2dab8a1f8e232bdad89f6cd3959f42d2f0aaf79327a3fd01ffb [2021-10-29 04:58:31,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:58:31,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:58:31,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:58:31,810 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:58:31,810 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:58:31,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2021-10-29 04:58:31,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/b1bf918e7/2ef7e266adfa4227a8c662fe64586330/FLAG792f1ee5f [2021-10-29 04:58:32,337 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:58:32,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2021-10-29 04:58:32,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/b1bf918e7/2ef7e266adfa4227a8c662fe64586330/FLAG792f1ee5f [2021-10-29 04:58:32,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/b1bf918e7/2ef7e266adfa4227a8c662fe64586330 [2021-10-29 04:58:32,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:58:32,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:58:32,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:58:32,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:58:32,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:58:32,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:58:32" (1/1) ... [2021-10-29 04:58:32,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13534878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:32, skipping insertion in model container [2021-10-29 04:58:32,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:58:32" (1/1) ... [2021-10-29 04:58:32,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:58:32,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:58:32,969 WARN L228 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_afb243e9-91e9-49f8-9384-a5d08d2a4169/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c[6215,6228] [2021-10-29 04:58:32,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:58:32,982 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:58:33,037 WARN L228 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_afb243e9-91e9-49f8-9384-a5d08d2a4169/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c[6215,6228] [2021-10-29 04:58:33,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:58:33,055 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:58:33,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33 WrapperNode [2021-10-29 04:58:33,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:58:33,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:58:33,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:58:33,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:58:33,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:58:33,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:58:33,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:58:33,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:58:33,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:58:33,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:58:33,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:58:33,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:58:33,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:58:33,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:58:33,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:58:33,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:58:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:58:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:58:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 04:58:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:58:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 04:58:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:58:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:58:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:58:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-29 04:58:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:58:34,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:58:34,259 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-29 04:58:34,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:58:34 BoogieIcfgContainer [2021-10-29 04:58:34,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:58:34,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:58:34,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:58:34,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:58:34,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:58:32" (1/3) ... [2021-10-29 04:58:34,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb1de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:58:34, skipping insertion in model container [2021-10-29 04:58:34,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33" (2/3) ... [2021-10-29 04:58:34,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb1de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:58:34, skipping insertion in model container [2021-10-29 04:58:34,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:58:34" (3/3) ... [2021-10-29 04:58:34,273 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685a.c [2021-10-29 04:58:34,278 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:58:34,278 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:58:34,335 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:58:34,340 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 [2021-10-29 04:58:34,341 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:58:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 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) [2021-10-29 04:58:34,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:58:34,362 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:34,363 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:34,363 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:58:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:34,369 INFO L85 PathProgramCache]: Analyzing trace with hash 382235670, now seen corresponding path program 1 times [2021-10-29 04:58:34,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:34,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963379009] [2021-10-29 04:58:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:34,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:58:34,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:34,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963379009] [2021-10-29 04:58:34,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963379009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:34,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:34,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:34,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853180459] [2021-10-29 04:58:34,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:58:34,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:34,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:58:34,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:58:34,597 INFO L87 Difference]: Start difference. First operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 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) [2021-10-29 04:58:34,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:34,619 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2021-10-29 04:58:34,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:58:34,621 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 [2021-10-29 04:58:34,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:34,631 INFO L225 Difference]: With dead ends: 163 [2021-10-29 04:58:34,631 INFO L226 Difference]: Without dead ends: 80 [2021-10-29 04:58:34,634 INFO L786 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 [2021-10-29 04:58:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-29 04:58:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-29 04:58:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 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) [2021-10-29 04:58:34,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 109 transitions. [2021-10-29 04:58:34,674 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 109 transitions. Word has length 9 [2021-10-29 04:58:34,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:34,675 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 109 transitions. [2021-10-29 04:58:34,675 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) [2021-10-29 04:58:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 109 transitions. [2021-10-29 04:58:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:58:34,676 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:34,676 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:34,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:58:34,677 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:58:34,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:34,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2045881791, now seen corresponding path program 1 times [2021-10-29 04:58:34,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:34,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409588947] [2021-10-29 04:58:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:34,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:58:34,764 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:58:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:58:34,873 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:58:34,873 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:58:34,875 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:58:34,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:58:34,880 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:58:34,882 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:58:34,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:58:34 BoogieIcfgContainer [2021-10-29 04:58:34,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:58:34,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:58:34,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:58:34,927 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:58:34,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:58:34" (3/4) ... [2021-10-29 04:58:34,931 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:58:34,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:58:34,934 INFO L168 Benchmark]: Toolchain (without parser) took 2245.47 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.5 MB in the beginning and 61.0 MB in the end (delta: -10.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:34,935 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 67.2 MB in the beginning and 67.2 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:58:34,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.23 ms. Allocated memory is still 88.1 MB. Free memory was 50.3 MB in the beginning and 60.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:34,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.37 ms. Allocated memory is still 88.1 MB. Free memory was 60.7 MB in the beginning and 57.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:34,947 INFO L168 Benchmark]: Boogie Preprocessor took 74.06 ms. Allocated memory is still 88.1 MB. Free memory was 57.4 MB in the beginning and 54.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:34,947 INFO L168 Benchmark]: RCFGBuilder took 1036.52 ms. Allocated memory is still 88.1 MB. Free memory was 54.2 MB in the beginning and 46.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:34,948 INFO L168 Benchmark]: TraceAbstraction took 660.69 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 45.2 MB in the beginning and 61.0 MB in the end (delta: -15.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:34,949 INFO L168 Benchmark]: Witness Printer took 4.77 ms. Allocated memory is still 107.0 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:58:34,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 67.2 MB in the beginning and 67.2 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.23 ms. Allocated memory is still 88.1 MB. Free memory was 50.3 MB in the beginning and 60.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.37 ms. Allocated memory is still 88.1 MB. Free memory was 60.7 MB in the beginning and 57.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.06 ms. Allocated memory is still 88.1 MB. Free memory was 57.4 MB in the beginning and 54.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1036.52 ms. Allocated memory is still 88.1 MB. Free memory was 54.2 MB in the beginning and 46.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 660.69 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 45.2 MB in the beginning and 61.0 MB in the end (delta: -15.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.77 ms. Allocated memory is still 107.0 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 260]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -1.0 / 0.0; [L254] double y = 1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != 3 * pi_o_4 VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L260] reach_error() VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=82occurred 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, 20 NumberOfCodeBlocks, 20 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 [2021-10-29 04:58:35,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:58:37,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:58:37,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:58:37,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:58:37,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:58:37,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:58:37,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:58:37,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:58:37,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:58:37,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:58:37,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:58:37,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:58:37,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:58:37,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:58:37,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:58:37,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:58:37,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:58:37,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:58:37,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:58:37,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:58:37,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:58:37,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:58:37,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:58:37,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:58:37,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:58:37,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:58:37,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:58:37,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:58:37,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:58:37,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:58:37,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:58:37,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:58:37,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:58:37,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:58:37,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:58:37,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:58:37,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:58:37,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:58:37,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:58:37,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:58:37,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:58:37,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:58:37,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:58:37,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:58:37,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:58:37,569 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:58:37,569 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:58:37,569 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:58:37,569 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:58:37,570 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:58:37,570 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:58:37,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:58:37,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:58:37,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:58:37,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:58:37,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:58:37,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:58:37,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:58:37,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:58:37,574 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:58:37,574 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:58:37,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:58:37,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:58:37,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:58:37,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:58:37,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:58:37,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:58:37,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:58:37,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:58:37,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:58:37,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:58:37,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:58:37,577 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:58:37,577 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:58:37,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:58:37,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:58:37,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:58:37,579 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_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4c4b31312aaf2dab8a1f8e232bdad89f6cd3959f42d2f0aaf79327a3fd01ffb [2021-10-29 04:58:37,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:58:37,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:58:37,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:58:37,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:58:37,956 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:58:37,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2021-10-29 04:58:38,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/af8615ee1/23b28b34d023487a8417bf86ced78cba/FLAG928e52ef8 [2021-10-29 04:58:38,630 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:58:38,630 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c [2021-10-29 04:58:38,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/af8615ee1/23b28b34d023487a8417bf86ced78cba/FLAG928e52ef8 [2021-10-29 04:58:38,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/data/af8615ee1/23b28b34d023487a8417bf86ced78cba [2021-10-29 04:58:38,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:58:38,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:58:38,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:58:38,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:58:38,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:58:38,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:58:38" (1/1) ... [2021-10-29 04:58:38,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34476105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:38, skipping insertion in model container [2021-10-29 04:58:38,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:58:38" (1/1) ... [2021-10-29 04:58:39,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:58:39,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:58:39,287 WARN L228 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_afb243e9-91e9-49f8-9384-a5d08d2a4169/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c[6215,6228] [2021-10-29 04:58:39,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:58:39,305 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:58:39,387 WARN L228 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_afb243e9-91e9-49f8-9384-a5d08d2a4169/sv-benchmarks/c/float-newlib/double_req_bl_0685a.c[6215,6228] [2021-10-29 04:58:39,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:58:39,418 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:58:39,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39 WrapperNode [2021-10-29 04:58:39,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:58:39,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:58:39,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:58:39,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:58:39,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:58:39,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:58:39,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:58:39,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:58:39,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:58:39,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:58:39,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:58:39,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:58:39,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (1/1) ... [2021-10-29 04:58:39,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:58:39,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:58:39,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:58:39,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:58:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 04:58:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 04:58:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:58:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:58:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-29 04:58:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:58:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:58:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:58:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:58:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:59:14,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:59:14,859 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-29 04:59:14,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:59:14 BoogieIcfgContainer [2021-10-29 04:59:14,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:59:14,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:59:14,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:59:14,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:59:14,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:58:38" (1/3) ... [2021-10-29 04:59:14,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79da59d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:59:14, skipping insertion in model container [2021-10-29 04:59:14,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:39" (2/3) ... [2021-10-29 04:59:14,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79da59d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:59:14, skipping insertion in model container [2021-10-29 04:59:14,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:59:14" (3/3) ... [2021-10-29 04:59:14,870 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685a.c [2021-10-29 04:59:14,875 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:59:14,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:59:14,923 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:59:14,929 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 [2021-10-29 04:59:14,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:59:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 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) [2021-10-29 04:59:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:59:14,951 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:59:14,951 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:59:14,952 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:59:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:59:14,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2021-10-29 04:59:14,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:59:14,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092811639] [2021-10-29 04:59:14,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:14,971 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:59:14,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:59:14,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:59:14,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:59:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:15,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:59:15,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:59:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:15,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:59:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:15,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:59:15,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092811639] [2021-10-29 04:59:15,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092811639] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:59:15,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:59:15,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:59:15,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689131151] [2021-10-29 04:59:15,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:59:15,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:59:15,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:59:15,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:59:15,947 INFO L87 Difference]: Start difference. First operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-29 04:59:15,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:59:15,997 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2021-10-29 04:59:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:59:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-29 04:59:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:59:16,011 INFO L225 Difference]: With dead ends: 224 [2021-10-29 04:59:16,012 INFO L226 Difference]: Without dead ends: 110 [2021-10-29 04:59:16,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:59:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-29 04:59:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-10-29 04:59:16,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 109 states have internal predecessors, (158), 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) [2021-10-29 04:59:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2021-10-29 04:59:16,067 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2021-10-29 04:59:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:59:16,067 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2021-10-29 04:59:16,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-29 04:59:16,068 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2021-10-29 04:59:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:59:16,069 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:59:16,069 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:59:16,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:16,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:59:16,285 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:59:16,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:59:16,286 INFO L85 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2021-10-29 04:59:16,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:59:16,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142210443] [2021-10-29 04:59:16,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:16,288 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:59:16,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:59:16,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:59:16,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:59:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:16,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:59:16,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:59:17,342 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 54 treesize of output 54 [2021-10-29 04:59:20,414 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:59:20,415 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 81 treesize of output 79 [2021-10-29 04:59:20,722 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 25 treesize of output 17 [2021-10-29 04:59:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:24,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:59:28,005 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:59:28,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 108 [2021-10-29 04:59:28,184 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:59:28,185 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 108 treesize of output 110 [2021-10-29 04:59:28,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:59:28,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142210443] [2021-10-29 04:59:28,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-10-29 04:59:28,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1234307949] [2021-10-29 04:59:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:28,247 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:59:28,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:59:28,254 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:59:28,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-29 04:59:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:31,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:59:31,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@151618bc [2021-10-29 04:59:31,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070434796] [2021-10-29 04:59:31,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:31,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:59:31,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:59:31,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:59:31,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 04:59:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:31,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:59:31,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@151618bc [2021-10-29 04:59:31,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:59:31,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 04:59:31,441 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 04:59:31,441 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 04:59:31,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:59:31,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:31,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-29 04:59:31,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:32,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 04:59:32,054 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:59:32,056 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:59:32,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:59:32 BoogieIcfgContainer [2021-10-29 04:59:32,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:59:32,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:59:32,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:59:32,071 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:59:32,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:59:14" (3/4) ... [2021-10-29 04:59:32,075 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:59:32,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:59:32,077 INFO L168 Benchmark]: Toolchain (without parser) took 53093.24 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.9 MB in the beginning and 28.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:32,077 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 34.9 MB in the beginning and 34.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:59:32,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.20 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.7 MB in the beginning and 45.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:32,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.33 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 41.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:32,080 INFO L168 Benchmark]: Boogie Preprocessor took 68.79 ms. Allocated memory is still 67.1 MB. Free memory was 41.9 MB in the beginning and 38.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:32,080 INFO L168 Benchmark]: RCFGBuilder took 35300.26 ms. Allocated memory is still 67.1 MB. Free memory was 38.4 MB in the beginning and 42.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:32,081 INFO L168 Benchmark]: TraceAbstraction took 17207.53 ms. Allocated memory is still 67.1 MB. Free memory was 42.0 MB in the beginning and 29.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:32,082 INFO L168 Benchmark]: Witness Printer took 4.49 ms. Allocated memory is still 67.1 MB. Free memory was 29.1 MB in the beginning and 28.7 MB in the end (delta: 365.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:59:32,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 34.9 MB in the beginning and 34.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 432.20 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.7 MB in the beginning and 45.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.33 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 41.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.79 ms. Allocated memory is still 67.1 MB. Free memory was 41.9 MB in the beginning and 38.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 35300.26 ms. Allocated memory is still 67.1 MB. Free memory was 38.4 MB in the beginning and 42.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17207.53 ms. Allocated memory is still 67.1 MB. Free memory was 42.0 MB in the beginning and 29.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.49 ms. Allocated memory is still 67.1 MB. Free memory was 29.1 MB in the beginning and 28.7 MB in the end (delta: 365.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 260]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -1.0 / 0.0; [L254] double y = 1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != 3 * pi_o_4 [L260] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 1.0s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 7 QuantifiedInterpolants, 357 SizeOfPredicates, 14 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2021-10-29 04:59:32,326 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 04:59:32,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb243e9-91e9-49f8-9384-a5d08d2a4169/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...