./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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 01f5d92913440f76bf2a724738adcdb83e463632 ............................................................................................................................................................................................................................................................................................................................... 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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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 01f5d92913440f76bf2a724738adcdb83e463632 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 04:47:58,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:47:58,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:47:58,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:47:58,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:47:58,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:47:58,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:47:58,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:47:58,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:47:58,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:47:58,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:47:58,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:47:58,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:47:58,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:47:58,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:47:58,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:47:58,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:47:58,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:47:58,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:47:58,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:47:58,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:47:58,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:47:58,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:47:58,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:47:58,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:47:58,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:47:58,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:47:58,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:47:58,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:47:58,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:47:58,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:47:58,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:47:58,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:47:58,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:47:58,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:47:58,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:47:58,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:47:58,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:47:58,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:47:58,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:47:58,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:47:58,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 04:47:58,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:47:58,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:47:58,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:47:58,620 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:47:58,620 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:47:58,620 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:47:58,620 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 04:47:58,621 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:47:58,621 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:47:58,621 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 04:47:58,621 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 04:47:58,621 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:47:58,621 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 04:47:58,622 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 04:47:58,622 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 04:47:58,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:47:58,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:47:58,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:47:58,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:47:58,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:47:58,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:47:58,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:47:58,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:47:58,624 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:47:58,624 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:47:58,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:47:58,624 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:47:58,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:47:58,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:47:58,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:47:58,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:47:58,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:47:58,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:47:58,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:47:58,626 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 04:47:58,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 04:47:58,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:47:58,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:47:58,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:47:58,627 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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01f5d92913440f76bf2a724738adcdb83e463632 [2020-12-09 04:47:58,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:47:58,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:47:58,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:47:58,841 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:47:58,841 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:47:58,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-12-09 04:47:58,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/01e2f861e/95da2cf96e564c7ca477b980e568a9b3/FLAGe814c56a4 [2020-12-09 04:47:59,259 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:47:59,260 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-12-09 04:47:59,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/01e2f861e/95da2cf96e564c7ca477b980e568a9b3/FLAGe814c56a4 [2020-12-09 04:47:59,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/01e2f861e/95da2cf96e564c7ca477b980e568a9b3 [2020-12-09 04:47:59,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:47:59,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:47:59,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:47:59,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:47:59,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:47:59,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3b08ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59, skipping insertion in model container [2020-12-09 04:47:59,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:47:59,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:47:59,425 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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2020-12-09 04:47:59,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:47:59,434 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:47:59,462 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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2020-12-09 04:47:59,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:47:59,479 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:47:59,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59 WrapperNode [2020-12-09 04:47:59,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:47:59,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:47:59,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:47:59,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:47:59,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:47:59,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:47:59,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:47:59,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:47:59,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... [2020-12-09 04:47:59,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:47:59,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:47:59,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:47:59,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:47:59,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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 04:47:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 04:47:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:47:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 04:47:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 04:47:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 04:47:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:47:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:47:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 04:47:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-09 04:47:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 04:47:59,996 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:47:59,997 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-09 04:47:59,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:47:59 BoogieIcfgContainer [2020-12-09 04:47:59,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:48:00,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:48:00,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:48:00,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:48:00,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:47:59" (1/3) ... [2020-12-09 04:48:00,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4621ecf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:00, skipping insertion in model container [2020-12-09 04:48:00,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:59" (2/3) ... [2020-12-09 04:48:00,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4621ecf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:00, skipping insertion in model container [2020-12-09 04:48:00,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:47:59" (3/3) ... [2020-12-09 04:48:00,006 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2020-12-09 04:48:00,018 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:48:00,021 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 04:48:00,029 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 04:48:00,047 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:48:00,048 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:48:00,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:48:00,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:48:00,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:48:00,048 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:48:00,048 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:48:00,048 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:48:00,057 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-12-09 04:48:00,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 04:48:00,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:48:00,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:48:00,061 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:48:00,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:48:00,071 INFO L82 PathProgramCache]: Analyzing trace with hash 371589423, now seen corresponding path program 1 times [2020-12-09 04:48:00,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:48:00,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636420338] [2020-12-09 04:48:00,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:48:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:48:00,208 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 04:48:00,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636420338] [2020-12-09 04:48:00,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:48:00,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:48:00,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935579121] [2020-12-09 04:48:00,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 04:48:00,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:48:00,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 04:48:00,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:48:00,224 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-12-09 04:48:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:48:00,236 INFO L93 Difference]: Finished difference Result 41 states and 61 transitions. [2020-12-09 04:48:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 04:48:00,237 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 04:48:00,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:48:00,243 INFO L225 Difference]: With dead ends: 41 [2020-12-09 04:48:00,243 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 04:48:00,246 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 04:48:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 04:48:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-09 04:48:00,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 04:48:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-12-09 04:48:00,271 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2020-12-09 04:48:00,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:48:00,271 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-12-09 04:48:00,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 04:48:00,271 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-12-09 04:48:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 04:48:00,271 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:48:00,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:48:00,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 04:48:00,272 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:48:00,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:48:00,272 INFO L82 PathProgramCache]: Analyzing trace with hash 762735980, now seen corresponding path program 1 times [2020-12-09 04:48:00,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:48:00,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582411896] [2020-12-09 04:48:00,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:48:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:48:00,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:48:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:48:00,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:48:00,383 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 04:48:00,383 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 04:48:00,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 04:48:00,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:48:00 BoogieIcfgContainer [2020-12-09 04:48:00,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:48:00,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:48:00,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:48:00,407 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:48:00,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:47:59" (3/4) ... [2020-12-09 04:48:00,410 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 04:48:00,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:48:00,411 INFO L168 Benchmark]: Toolchain (without parser) took 1133.37 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 43.2 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:00,412 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 69.2 MB. Free memory was 43.9 MB in the beginning and 43.9 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:48:00,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.31 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 56.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:00,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.15 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 54.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:00,413 INFO L168 Benchmark]: Boogie Preprocessor took 26.16 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 51.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:00,414 INFO L168 Benchmark]: RCFGBuilder took 448.12 ms. Allocated memory is still 90.2 MB. Free memory was 51.9 MB in the beginning and 38.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:00,414 INFO L168 Benchmark]: TraceAbstraction took 406.22 ms. Allocated memory is still 90.2 MB. Free memory was 37.7 MB in the beginning and 43.8 MB in the end (delta: -6.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:48:00,415 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 90.2 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:48:00,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 69.2 MB. Free memory was 43.9 MB in the beginning and 43.9 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 201.31 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 56.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.15 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 54.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.16 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 51.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 448.12 ms. Allocated memory is still 90.2 MB. Free memory was 51.9 MB in the beginning and 38.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 406.22 ms. Allocated memory is still 90.2 MB. Free memory was 37.7 MB in the beginning and 43.8 MB in the end (delta: -6.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.02 ms. Allocated memory is still 90.2 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 134]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L129] float x = 0.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={11:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 [L69] COND FALSE !(((ix) > 0x7f800000L)) [L71] COND FALSE !(hx > 0) [L74] EXPR atanhi_atan[3] [L74] EXPR atanlo_atan[3] [L74] return -atanhi_atan[3] - atanlo_atan[3]; [L130] float res = atan_float(x); [L17] return x != x; [L133] COND TRUE !isnan_float(res) [L134] reach_error() VAL [aT_atan={11:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:48:01,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:48:01,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:48:01,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:48:01,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:48:01,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:48:01,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:48:01,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:48:01,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:48:01,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:48:01,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:48:01,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:48:01,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:48:01,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:48:01,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:48:01,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:48:01,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:48:01,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:48:01,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:48:02,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:48:02,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:48:02,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:48:02,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:48:02,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:48:02,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:48:02,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:48:02,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:48:02,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:48:02,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:48:02,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:48:02,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:48:02,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:48:02,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:48:02,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:48:02,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:48:02,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:48:02,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:48:02,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:48:02,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:48:02,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:48:02,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:48:02,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 04:48:02,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:48:02,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:48:02,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:48:02,046 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:48:02,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:48:02,047 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:48:02,047 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:48:02,047 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:48:02,047 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:48:02,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:48:02,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:48:02,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:48:02,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:48:02,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:48:02,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:48:02,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:48:02,049 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:48:02,049 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 04:48:02,049 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 04:48:02,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:48:02,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:48:02,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:48:02,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:48:02,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:48:02,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 04:48:02,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:48:02,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:48:02,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:48:02,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:48:02,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:48:02,055 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 04:48:02,055 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 04:48:02,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:48:02,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:48:02,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:48:02,056 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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01f5d92913440f76bf2a724738adcdb83e463632 [2020-12-09 04:48:02,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:48:02,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:48:02,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:48:02,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:48:02,318 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:48:02,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-12-09 04:48:02,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/1e82a61a8/ef9ed7fdcb7348e38e97fa4f58dea4cf/FLAGc3ed33ed7 [2020-12-09 04:48:02,735 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:48:02,736 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-12-09 04:48:02,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/1e82a61a8/ef9ed7fdcb7348e38e97fa4f58dea4cf/FLAGc3ed33ed7 [2020-12-09 04:48:02,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/data/1e82a61a8/ef9ed7fdcb7348e38e97fa4f58dea4cf [2020-12-09 04:48:02,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:48:02,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:48:02,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:48:02,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:48:02,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:48:02,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:02,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e14a234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02, skipping insertion in model container [2020-12-09 04:48:02,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:02,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:48:02,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:48:02,920 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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2020-12-09 04:48:02,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:48:02,941 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:48:02,970 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_72f73c22-da2e-4da5-a5b2-4c42c333f79a/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2020-12-09 04:48:02,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:48:02,987 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:48:02,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02 WrapperNode [2020-12-09 04:48:02,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:48:02,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:48:02,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:48:02,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:48:02,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:48:03,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:48:03,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:48:03,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:48:03,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... [2020-12-09 04:48:03,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:48:03,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:48:03,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:48:03,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:48:03,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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 04:48:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-09 04:48:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 04:48:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:48:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 04:48:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 04:48:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:48:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:48:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 04:48:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 04:48:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 04:48:16,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:48:16,177 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-09 04:48:16,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:16 BoogieIcfgContainer [2020-12-09 04:48:16,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:48:16,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:48:16,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:48:16,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:48:16,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:48:02" (1/3) ... [2020-12-09 04:48:16,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3f572b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:16, skipping insertion in model container [2020-12-09 04:48:16,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:02" (2/3) ... [2020-12-09 04:48:16,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3f572b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:16, skipping insertion in model container [2020-12-09 04:48:16,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:16" (3/3) ... [2020-12-09 04:48:16,185 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2020-12-09 04:48:16,195 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:48:16,198 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 04:48:16,207 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 04:48:16,226 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:48:16,226 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:48:16,226 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:48:16,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:48:16,226 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:48:16,226 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:48:16,226 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:48:16,226 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:48:16,236 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-09 04:48:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 04:48:16,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:48:16,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:48:16,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:48:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:48:16,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2020-12-09 04:48:16,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:48:16,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583986450] [2020-12-09 04:48:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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 04:48:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:48:17,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 04:48:17,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:48:17,060 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 04:48:17,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:48:17,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583986450] [2020-12-09 04:48:17,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:48:17,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:48:17,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408034911] [2020-12-09 04:48:17,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 04:48:17,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:48:17,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 04:48:17,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:48:17,074 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-09 04:48:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:48:17,086 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2020-12-09 04:48:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 04:48:17,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 04:48:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:48:17,093 INFO L225 Difference]: With dead ends: 64 [2020-12-09 04:48:17,093 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 04:48:17,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 04:48:17,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 04:48:17,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 04:48:17,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 04:48:17,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-09 04:48:17,117 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2020-12-09 04:48:17,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:48:17,117 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-09 04:48:17,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 04:48:17,117 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-09 04:48:17,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 04:48:17,117 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:48:17,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:48:17,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 04:48:17,319 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:48:17,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:48:17,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2020-12-09 04:48:17,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:48:17,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970253498] [2020-12-09 04:48:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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 04:48:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:48:18,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 04:48:18,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:48:18,338 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 04:48:18,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:48:18,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970253498] [2020-12-09 04:48:18,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:48:18,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 04:48:18,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292736731] [2020-12-09 04:48:18,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 04:48:18,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:48:18,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 04:48:18,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 04:48:18,341 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 7 states. [2020-12-09 04:48:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:48:35,389 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2020-12-09 04:48:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 04:48:35,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-09 04:48:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:48:35,431 INFO L225 Difference]: With dead ends: 45 [2020-12-09 04:48:35,431 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 04:48:35,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 04:48:35,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 04:48:35,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2020-12-09 04:48:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 04:48:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-12-09 04:48:35,437 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2020-12-09 04:48:35,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:48:35,437 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-12-09 04:48:35,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 04:48:35,437 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-09 04:48:35,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 04:48:35,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:48:35,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:48:35,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 04:48:35,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:48:35,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:48:35,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2020-12-09 04:48:35,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:48:35,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102136328] [2020-12-09 04:48:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/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 04:48:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:48:36,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 04:48:36,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:48:36,625 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 04:48:36,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:48:36,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102136328] [2020-12-09 04:48:36,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:48:36,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 04:48:36,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408802727] [2020-12-09 04:48:36,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 04:48:36,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:48:36,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 04:48:36,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:48:36,627 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 5 states. [2020-12-09 04:48:36,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:48:36,848 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-12-09 04:48:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:48:36,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-09 04:48:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:48:36,849 INFO L225 Difference]: With dead ends: 30 [2020-12-09 04:48:36,849 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 04:48:36,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 04:48:36,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 04:48:36,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 04:48:36,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 04:48:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 04:48:36,850 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-09 04:48:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:48:36,850 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 04:48:36,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 04:48:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 04:48:36,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 04:48:37,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 04:48:37,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L93-2(lines 76 101) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L118-2(line 118) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L258 CegarLoopResult]: At program point L118-3(lines 58 120) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_atan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L77(lines 77 80) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L77-2(lines 77 80) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point L69(lines 69 70) no Hoare annotation was computed. [2020-12-09 04:48:37,280 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point L78(lines 78 79) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L258 CegarLoopResult]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point L62-3(lines 62 66) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point L71(lines 71 74) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L265 CegarLoopResult]: At program point L138(lines 122 139) the Hoare annotation is: true [2020-12-09 04:48:37,281 INFO L258 CegarLoopResult]: At program point L31(lines 19 32) the Hoare annotation is: false [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point L114(lines 114 119) no Hoare annotation was computed. [2020-12-09 04:48:37,281 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 134) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L258 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_atan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L133(lines 133 136) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L26-1(lines 19 32) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L84(lines 84 100) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L76(lines 76 101) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 04:48:37,282 INFO L262 CegarLoopResult]: For program point L68(lines 68 75) no Hoare annotation was computed. [2020-12-09 04:48:37,290 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,291 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,291 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,291 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,293 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:48:37 BoogieIcfgContainer [2020-12-09 04:48:37,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:48:37,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:48:37,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:48:37,298 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:48:37,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:16" (3/4) ... [2020-12-09 04:48:37,301 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 04:48:37,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 04:48:37,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 04:48:37,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 04:48:37,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 04:48:37,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-12-09 04:48:37,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-12-09 04:48:37,351 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_72f73c22-da2e-4da5-a5b2-4c42c333f79a/bin/utaipan/witness.graphml [2020-12-09 04:48:37,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:48:37,352 INFO L168 Benchmark]: Toolchain (without parser) took 34598.64 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 35.4 MB in the beginning and 42.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:37,352 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:48:37,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.52 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 36.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:37,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 34.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:37,353 INFO L168 Benchmark]: Boogie Preprocessor took 31.26 ms. Allocated memory is still 56.6 MB. Free memory was 34.0 MB in the beginning and 31.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:37,353 INFO L168 Benchmark]: RCFGBuilder took 13119.51 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 31.7 MB in the beginning and 51.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:37,354 INFO L168 Benchmark]: TraceAbstraction took 21118.23 ms. Allocated memory is still 73.4 MB. Free memory was 51.1 MB in the beginning and 47.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:37,354 INFO L168 Benchmark]: Witness Printer took 52.70 ms. Allocated memory is still 73.4 MB. Free memory was 47.1 MB in the beginning and 42.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 04:48:37,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 234.52 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 36.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 34.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.26 ms. Allocated memory is still 56.6 MB. Free memory was 34.0 MB in the beginning and 31.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13119.51 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 31.7 MB in the beginning and 51.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21118.23 ms. Allocated memory is still 73.4 MB. Free memory was 51.1 MB in the beginning and 47.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * Witness Printer took 52.70 ms. Allocated memory is still 73.4 MB. Free memory was 47.1 MB in the beginning and 42.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 134]: 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: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2020-12-09 04:48:37,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 62]: Loop Invariant [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 58]: Loop Invariant [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 04:48:37,362 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 62 SDslu, 86 SDs, 0 SdLazy, 49 SolverSat, 2 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 60 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 5 QuantifiedInterpolants, 1648 SizeOfPredicates, 16 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...