./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan --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 16ed93f7e94a59686881f163258e4b8f85fe8ac8 ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan --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 16ed93f7e94a59686881f163258e4b8f85fe8ac8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:07:09,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:07:09,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:07:09,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:07:09,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:07:09,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:07:09,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:07:09,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:07:09,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:07:09,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:07:09,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:07:09,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:07:09,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:07:09,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:07:09,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:07:09,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:07:09,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:07:09,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:07:09,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:07:09,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:07:09,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:07:09,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:07:09,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:07:09,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:07:09,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:07:09,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:07:09,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:07:09,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:07:09,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:07:09,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:07:09,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:07:09,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:07:09,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:07:09,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:07:09,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:07:09,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:07:09,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:07:09,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:07:09,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:07:09,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:07:09,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:07:09,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 14:07:09,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:07:09,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:07:09,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:07:09,602 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:07:09,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:07:09,602 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:07:09,603 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 14:07:09,603 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:07:09,603 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:07:09,603 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 14:07:09,603 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 14:07:09,603 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:07:09,604 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 14:07:09,604 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 14:07:09,604 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 14:07:09,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:07:09,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:07:09,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:07:09,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:07:09,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:07:09,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:07:09,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:07:09,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:07:09,606 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:07:09,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:07:09,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:07:09,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:07:09,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:07:09,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:07:09,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:07:09,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:07:09,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:07:09,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:07:09,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:07:09,608 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 14:07:09,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 14:07:09,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:07:09,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:07:09,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:07:09,609 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-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-12-09 14:07:09,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:07:09,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:07:09,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:07:09,822 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:07:09,823 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:07:09,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-12-09 14:07:09,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/b4e195593/25ebd330c4c9493aa12a94966edc934a/FLAG2f3693f7a [2020-12-09 14:07:10,237 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:07:10,238 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-12-09 14:07:10,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/b4e195593/25ebd330c4c9493aa12a94966edc934a/FLAG2f3693f7a [2020-12-09 14:07:10,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/b4e195593/25ebd330c4c9493aa12a94966edc934a [2020-12-09 14:07:10,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:07:10,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:07:10,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:07:10,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:07:10,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:07:10,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@906e1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10, skipping insertion in model container [2020-12-09 14:07:10,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:07:10,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:07:10,442 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2020-12-09 14:07:10,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:07:10,454 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:07:10,494 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2020-12-09 14:07:10,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:07:10,510 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:07:10,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10 WrapperNode [2020-12-09 14:07:10,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:07:10,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:07:10,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:07:10,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:07:10,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:07:10,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:07:10,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:07:10,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:07:10,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... [2020-12-09 14:07:10,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:07:10,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:07:10,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:07:10,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:07:10,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:07:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 14:07:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:07:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 14:07:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 14:07:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 14:07:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:07:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:07:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 14:07:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 14:07:11,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:07:11,017 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 14:07:11,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:11 BoogieIcfgContainer [2020-12-09 14:07:11,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:07:11,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:07:11,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:07:11,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:07:11,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:07:10" (1/3) ... [2020-12-09 14:07:11,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c877f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:07:11, skipping insertion in model container [2020-12-09 14:07:11,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:10" (2/3) ... [2020-12-09 14:07:11,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c877f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:07:11, skipping insertion in model container [2020-12-09 14:07:11,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:11" (3/3) ... [2020-12-09 14:07:11,024 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-12-09 14:07:11,033 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:07:11,036 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 14:07:11,043 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 14:07:11,059 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:07:11,059 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:07:11,059 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:07:11,059 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:07:11,059 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:07:11,059 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:07:11,060 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:07:11,060 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:07:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-12-09 14:07:11,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 14:07:11,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:11,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:07:11,072 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:11,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:11,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1533169893, now seen corresponding path program 1 times [2020-12-09 14:07:11,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:07:11,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832222084] [2020-12-09 14:07:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:07:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:11,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832222084] [2020-12-09 14:07:11,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:11,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:07:11,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805392538] [2020-12-09 14:07:11,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 14:07:11,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:07:11,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 14:07:11,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 14:07:11,197 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-12-09 14:07:11,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:07:11,210 INFO L93 Difference]: Finished difference Result 74 states and 121 transitions. [2020-12-09 14:07:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 14:07:11,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 14:07:11,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:07:11,221 INFO L225 Difference]: With dead ends: 74 [2020-12-09 14:07:11,221 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 14:07:11,223 INFO L677 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 [2020-12-09 14:07:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 14:07:11,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-09 14:07:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 14:07:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2020-12-09 14:07:11,247 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 10 [2020-12-09 14:07:11,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:07:11,248 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2020-12-09 14:07:11,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 14:07:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-12-09 14:07:11,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 14:07:11,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:11,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:07:11,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 14:07:11,249 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:11,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:11,249 INFO L82 PathProgramCache]: Analyzing trace with hash -521576784, now seen corresponding path program 1 times [2020-12-09 14:07:11,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:07:11,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66331474] [2020-12-09 14:07:11,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:07:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:11,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66331474] [2020-12-09 14:07:11,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:11,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:07:11,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679469529] [2020-12-09 14:07:11,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:07:11,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:07:11,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:07:11,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:07:11,290 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 3 states. [2020-12-09 14:07:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:07:11,305 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2020-12-09 14:07:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:07:11,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-09 14:07:11,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:07:11,306 INFO L225 Difference]: With dead ends: 65 [2020-12-09 14:07:11,306 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 14:07:11,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:07:11,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 14:07:11,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-09 14:07:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 14:07:11,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-12-09 14:07:11,310 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 11 [2020-12-09 14:07:11,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:07:11,310 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-12-09 14:07:11,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:07:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-12-09 14:07:11,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 14:07:11,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:11,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:07:11,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 14:07:11,311 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:11,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:11,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1569579432, now seen corresponding path program 1 times [2020-12-09 14:07:11,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:07:11,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136793106] [2020-12-09 14:07:11,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:07:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:07:11,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:07:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:07:11,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:07:11,426 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 14:07:11,426 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 14:07:11,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 14:07:11,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:07:11 BoogieIcfgContainer [2020-12-09 14:07:11,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:07:11,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:07:11,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:07:11,458 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:07:11,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:11" (3/4) ... [2020-12-09 14:07:11,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 14:07:11,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:07:11,462 INFO L168 Benchmark]: Toolchain (without parser) took 1204.56 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 54.5 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:11,462 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 71.3 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:07:11,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.93 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 61.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:11,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 98.6 MB. Free memory was 60.9 MB in the beginning and 58.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:11,464 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 98.6 MB. Free memory was 58.7 MB in the beginning and 56.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:11,464 INFO L168 Benchmark]: RCFGBuilder took 440.80 ms. Allocated memory is still 98.6 MB. Free memory was 56.6 MB in the beginning and 52.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:11,465 INFO L168 Benchmark]: TraceAbstraction took 437.74 ms. Allocated memory is still 98.6 MB. Free memory was 52.3 MB in the beginning and 54.9 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:07:11,465 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 98.6 MB. Free memory was 54.9 MB in the beginning and 54.5 MB in the end (delta: 357.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:07:11,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 71.3 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.93 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 61.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 98.6 MB. Free memory was 60.9 MB in the beginning and 58.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 98.6 MB. Free memory was 58.7 MB in the beginning and 56.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 440.80 ms. Allocated memory is still 98.6 MB. Free memory was 56.6 MB in the beginning and 52.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 437.74 ms. Allocated memory is still 98.6 MB. Free memory was 52.3 MB in the beginning and 54.9 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.86 ms. Allocated memory is still 98.6 MB. Free memory was 54.9 MB in the beginning and 54.5 MB in the end (delta: 357.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 190]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 147. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L133] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L146] COND TRUE hx >= 0x7ff00000 [L147] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L186] double res = __ieee754_log10(x); [L163] return x != x; [L189] COND TRUE !isnan_double(res) [L190] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:07:13,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:07:13,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:07:13,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:07:13,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:07:13,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:07:13,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:07:13,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:07:13,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:07:13,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:07:13,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:07:13,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:07:13,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:07:13,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:07:13,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:07:13,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:07:13,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:07:13,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:07:13,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:07:13,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:07:13,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:07:13,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:07:13,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:07:13,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:07:13,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:07:13,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:07:13,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:07:13,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:07:13,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:07:13,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:07:13,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:07:13,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:07:13,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:07:13,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:07:13,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:07:13,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:07:13,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:07:13,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:07:13,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:07:13,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:07:13,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:07:13,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 14:07:13,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:07:13,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:07:13,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:07:13,142 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:07:13,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:07:13,143 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:07:13,143 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:07:13,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:07:13,143 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:07:13,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:07:13,144 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 14:07:13,145 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 14:07:13,145 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:07:13,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:07:13,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:07:13,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:07:13,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:07:13,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 14:07:13,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:07:13,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:07:13,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:07:13,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:07:13,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:07:13,146 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 14:07:13,146 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 14:07:13,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:07:13,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:07:13,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:07:13,147 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-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-12-09 14:07:13,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:07:13,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:07:13,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:07:13,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:07:13,414 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:07:13,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-12-09 14:07:13,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/472d1c181/602f781a104a47f89ef4a7b39bc4b8c3/FLAG9be77dbd5 [2020-12-09 14:07:13,866 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:07:13,866 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-12-09 14:07:13,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/472d1c181/602f781a104a47f89ef4a7b39bc4b8c3/FLAG9be77dbd5 [2020-12-09 14:07:13,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/data/472d1c181/602f781a104a47f89ef4a7b39bc4b8c3 [2020-12-09 14:07:13,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:07:13,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:07:13,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:07:13,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:07:13,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:07:13,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:07:13" (1/1) ... [2020-12-09 14:07:13,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0a9f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:13, skipping insertion in model container [2020-12-09 14:07:13,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:07:13" (1/1) ... [2020-12-09 14:07:13,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:07:13,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:07:14,070 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2020-12-09 14:07:14,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:07:14,087 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:07:14,139 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2020-12-09 14:07:14,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:07:14,159 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:07:14,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14 WrapperNode [2020-12-09 14:07:14,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:07:14,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:07:14,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:07:14,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:07:14,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:07:14,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:07:14,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:07:14,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:07:14,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... [2020-12-09 14:07:14,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:07:14,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:07:14,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:07:14,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:07:14,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:07:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 14:07:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 14:07:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 14:07:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:07:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 14:07:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:07:14,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:07:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 14:07:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 14:07:48,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:07:48,744 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 14:07:48,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:48 BoogieIcfgContainer [2020-12-09 14:07:48,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:07:48,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:07:48,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:07:48,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:07:48,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:07:13" (1/3) ... [2020-12-09 14:07:48,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791f3507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:07:48, skipping insertion in model container [2020-12-09 14:07:48,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:14" (2/3) ... [2020-12-09 14:07:48,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791f3507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:07:48, skipping insertion in model container [2020-12-09 14:07:48,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:48" (3/3) ... [2020-12-09 14:07:48,753 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-12-09 14:07:48,765 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:07:48,769 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 14:07:48,778 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 14:07:48,796 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:07:48,796 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:07:48,796 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:07:48,796 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:07:48,796 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:07:48,796 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:07:48,796 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:07:48,796 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:07:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-12-09 14:07:48,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 14:07:48,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:48,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:07:48,810 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:48,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2020-12-09 14:07:48,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:07:48,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182421337] [2020-12-09 14:07:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 14:07:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:48,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 14:07:48,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:07:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:48,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:07:48,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182421337] [2020-12-09 14:07:48,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:48,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:07:48,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145582703] [2020-12-09 14:07:48,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 14:07:48,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:07:49,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 14:07:49,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 14:07:49,007 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2020-12-09 14:07:49,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:07:49,020 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2020-12-09 14:07:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 14:07:49,021 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-09 14:07:49,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:07:49,028 INFO L225 Difference]: With dead ends: 95 [2020-12-09 14:07:49,028 INFO L226 Difference]: Without dead ends: 45 [2020-12-09 14:07:49,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 14:07:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-09 14:07:49,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-09 14:07:49,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-09 14:07:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-12-09 14:07:49,054 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2020-12-09 14:07:49,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:07:49,054 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-12-09 14:07:49,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 14:07:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-12-09 14:07:49,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 14:07:49,055 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:49,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:07:49,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 14:07:49,256 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:49,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:49,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2020-12-09 14:07:49,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:07:49,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077805899] [2020-12-09 14:07:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 14:07:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:49,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:07:49,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:07:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:49,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:07:49,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077805899] [2020-12-09 14:07:49,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:49,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:07:49,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714020493] [2020-12-09 14:07:49,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:07:49,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:07:49,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:07:49,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:07:49,454 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2020-12-09 14:07:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:07:49,522 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-12-09 14:07:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:07:49,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-09 14:07:49,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:07:49,524 INFO L225 Difference]: With dead ends: 83 [2020-12-09 14:07:49,524 INFO L226 Difference]: Without dead ends: 45 [2020-12-09 14:07:49,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:07:49,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-09 14:07:49,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-09 14:07:49,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-09 14:07:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2020-12-09 14:07:49,531 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2020-12-09 14:07:49,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:07:49,531 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2020-12-09 14:07:49,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:07:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2020-12-09 14:07:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 14:07:49,532 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:49,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:07:49,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 14:07:49,734 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:49,736 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2020-12-09 14:07:49,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:07:49,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097342603] [2020-12-09 14:07:49,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 14:07:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:49,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 14:07:49,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:07:50,381 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 14:07:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:50,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:07:50,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097342603] [2020-12-09 14:07:50,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:50,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 14:07:50,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002439990] [2020-12-09 14:07:50,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 14:07:50,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:07:50,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 14:07:50,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:07:50,889 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 6 states. [2020-12-09 14:07:51,391 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2020-12-09 14:07:51,623 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 14:07:51,874 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 14:07:57,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:07:57,561 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2020-12-09 14:07:57,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 14:07:57,584 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-09 14:07:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:07:57,584 INFO L225 Difference]: With dead ends: 50 [2020-12-09 14:07:57,584 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 14:07:57,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-09 14:07:57,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 14:07:57,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-09 14:07:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 14:07:57,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-09 14:07:57,588 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2020-12-09 14:07:57,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:07:57,588 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-09 14:07:57,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 14:07:57,588 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-09 14:07:57,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 14:07:57,588 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:57,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:07:57,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 14:07:57,790 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:57,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:57,792 INFO L82 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2020-12-09 14:07:57,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:07:57,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014090577] [2020-12-09 14:07:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 14:07:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:58,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:07:58,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:07:59,179 WARN L197 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 14:07:59,501 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-09 14:07:59,538 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 14:07:59,570 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 14:07:59,571 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 14:07:59,694 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 14:07:59,695 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 14:07:59,697 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 14:07:59,698 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:20 [2020-12-09 14:07:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:59,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:07:59,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014090577] [2020-12-09 14:07:59,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:59,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 14:07:59,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873774939] [2020-12-09 14:07:59,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 14:07:59,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:07:59,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 14:07:59,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:07:59,924 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2020-12-09 14:08:00,499 WARN L197 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2020-12-09 14:08:00,743 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 14:08:00,998 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 14:08:03,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:08:03,669 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-12-09 14:08:03,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 14:08:03,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-09 14:08:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:08:03,851 INFO L225 Difference]: With dead ends: 24 [2020-12-09 14:08:03,851 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 14:08:03,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-09 14:08:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 14:08:03,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-09 14:08:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 14:08:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-12-09 14:08:03,853 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2020-12-09 14:08:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:08:03,854 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-12-09 14:08:03,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 14:08:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-12-09 14:08:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 14:08:03,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:08:03,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:08:04,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 14:08:04,056 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:08:04,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:08:04,057 INFO L82 PathProgramCache]: Analyzing trace with hash 473095487, now seen corresponding path program 1 times [2020-12-09 14:08:04,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:08:04,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715675959] [2020-12-09 14:08:04,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 14:08:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:08:05,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:08:05,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:08:05,810 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 14:08:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:08:06,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:08:06,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715675959] [2020-12-09 14:08:06,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:08:06,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 14:08:06,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65172188] [2020-12-09 14:08:06,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 14:08:06,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:08:06,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 14:08:06,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:08:06,612 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 6 states. [2020-12-09 14:08:11,121 WARN L197 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 14:08:12,364 WARN L197 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 14:08:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:08:12,365 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-12-09 14:08:12,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 14:08:12,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-09 14:08:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:08:12,366 INFO L225 Difference]: With dead ends: 19 [2020-12-09 14:08:12,366 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 14:08:12,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 14:08:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 14:08:12,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 14:08:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 14:08:12,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 14:08:12,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-09 14:08:12,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:08:12,367 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 14:08:12,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 14:08:12,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 14:08:12,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 14:08:12,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 14:08:12,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 14:08:12,798 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 14:08:12,952 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 14:08:13,115 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 14:08:13,314 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 14:08:14,043 WARN L197 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 14:08:14,064 INFO L258 CegarLoopResult]: At program point L159(lines 120 160) the Hoare annotation is: (exists ((ULTIMATE.start___ieee754_log10_~x (_ FloatingPoint 11 53))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10_~x ULTIMATE.start___ieee754_log10_~x) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_#res|)) [2020-12-09 14:08:14,064 INFO L262 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-12-09 14:08:14,064 INFO L262 CegarLoopResult]: For program point L184-2(lines 184 193) no Hoare annotation was computed. [2020-12-09 14:08:14,064 INFO L262 CegarLoopResult]: For program point L184-4(lines 184 193) no Hoare annotation was computed. [2020-12-09 14:08:14,064 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2020-12-09 14:08:14,064 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L152-1(lines 152 157) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L258 CegarLoopResult]: At program point L152-2(lines 152 157) the Hoare annotation is: false [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L45(lines 45 57) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L45-1(lines 32 111) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L136(lines 136 137) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L37-1(lines 37 42) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L258 CegarLoopResult]: At program point L37-2(lines 37 42) the Hoare annotation is: false [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L37-3(lines 37 42) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L46(lines 46 47) no Hoare annotation was computed. [2020-12-09 14:08:14,065 INFO L262 CegarLoopResult]: For program point L71(lines 71 87) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L265 CegarLoopResult]: At program point L195(lines 175 196) the Hoare annotation is: true [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L63-1(lines 63 68) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L258 CegarLoopResult]: At program point L63-2(lines 63 68) the Hoare annotation is: false [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L72(lines 72 79) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L258 CegarLoopResult]: At program point L163(line 163) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_log10_~x (_ FloatingPoint 11 53))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10_~x ULTIMATE.start___ieee754_log10_~x) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L81(lines 81 86) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L48(lines 48 49) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L258 CegarLoopResult]: At program point L172(lines 165 173) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19| (= ~zero_log10~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L106(lines 106 109) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L73(lines 73 78) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L98(lines 98 110) no Hoare annotation was computed. [2020-12-09 14:08:14,066 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L189(lines 189 192) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 190) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L140-1(lines 140 144) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L258 CegarLoopResult]: At program point L140-2(lines 140 144) the Hoare annotation is: false [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L133(lines 133 145) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L133-1(lines 120 160) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L100(lines 100 104) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2020-12-09 14:08:14,067 INFO L258 CegarLoopResult]: At program point L125-2(lines 125 130) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10_~x ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= ~zero_log10~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2020-12-09 14:08:14,067 INFO L262 CegarLoopResult]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2020-12-09 14:08:14,068 INFO L258 CegarLoopResult]: At program point L109(lines 32 111) the Hoare annotation is: false [2020-12-09 14:08:14,068 INFO L262 CegarLoopResult]: For program point L167-1(lines 167 171) no Hoare annotation was computed. [2020-12-09 14:08:14,068 INFO L262 CegarLoopResult]: For program point L134(lines 134 135) no Hoare annotation was computed. [2020-12-09 14:08:14,068 INFO L258 CegarLoopResult]: At program point L167-2(lines 167 171) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19| (= ~zero_log10~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2020-12-09 14:08:14,068 INFO L262 CegarLoopResult]: For program point L167-3(lines 167 171) no Hoare annotation was computed. [2020-12-09 14:08:14,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:08:14 BoogieIcfgContainer [2020-12-09 14:08:14,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:08:14,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:08:14,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:08:14,086 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:08:14,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:48" (3/4) ... [2020-12-09 14:08:14,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 14:08:14,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2020-12-09 14:08:14,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-09 14:08:14,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 14:08:14,100 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 14:08:14,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && zero_log10 == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2020-12-09 14:08:14,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && zero_log10 == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2020-12-09 14:08:14,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && zero_log10 == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2020-12-09 14:08:14,117 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_log10_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x, ULTIMATE.start___ieee754_log10_~x), ~Pluszero~LONGDOUBLE()) == \result) [2020-12-09 14:08:14,117 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_log10_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x, ULTIMATE.start___ieee754_log10_~x), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result [2020-12-09 14:08:14,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ae6993ce-f959-4045-a653-13b46f8a9266/bin/utaipan/witness.graphml [2020-12-09 14:08:14,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:08:14,149 INFO L168 Benchmark]: Toolchain (without parser) took 60262.43 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 45.9 MB in the beginning and 33.5 MB in the end (delta: 12.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-12-09 14:08:14,149 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:08:14,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.56 ms. Allocated memory is still 62.9 MB. Free memory was 45.8 MB in the beginning and 45.2 MB in the end (delta: 573.6 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 14:08:14,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 62.9 MB. Free memory was 45.2 MB in the beginning and 42.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:08:14,150 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 40.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:08:14,150 INFO L168 Benchmark]: RCFGBuilder took 34517.54 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 40.5 MB in the beginning and 46.8 MB in the end (delta: -6.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:08:14,151 INFO L168 Benchmark]: TraceAbstraction took 25338.29 ms. Allocated memory is still 83.9 MB. Free memory was 46.5 MB in the beginning and 40.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-09 14:08:14,151 INFO L168 Benchmark]: Witness Printer took 62.12 ms. Allocated memory is still 83.9 MB. Free memory was 39.9 MB in the beginning and 33.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 14:08:14,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.56 ms. Allocated memory is still 62.9 MB. Free memory was 45.8 MB in the beginning and 45.2 MB in the end (delta: 573.6 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 62.9 MB. Free memory was 45.2 MB in the beginning and 42.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 40.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 34517.54 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 40.5 MB in the beginning and 46.8 MB in the end (delta: -6.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25338.29 ms. Allocated memory is still 83.9 MB. Free memory was 46.5 MB in the beginning and 40.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Witness Printer took 62.12 ms. Allocated memory is still 83.9 MB. Free memory was 39.9 MB in the beginning and 33.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 190]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 120]: Loop Invariant [2020-12-09 14:08:14,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___ieee754_log10_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x, ULTIMATE.start___ieee754_log10_~x), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && zero_log10 == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 125]: Loop Invariant [2020-12-09 14:08:14,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && zero_log10 == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant [2020-12-09 14:08:14,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 14:08:14,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && zero_log10 == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant [2020-12-09 14:08:14,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 14:08:14,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] [2020-12-09 14:08:14,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___ieee754_log10_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x, ULTIMATE.start___ieee754_log10_~x), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 36 SDslu, 154 SDs, 0 SdLazy, 42 SolverSat, 1 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 78 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 22 QuantifiedInterpolants, 6209 SizeOfPredicates, 23 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...