./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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 941f84fd12bbb635098ac1c65472cdf78fad6ad9 ................................................................................................................................................................................................................................................................................................................. 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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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 941f84fd12bbb635098ac1c65472cdf78fad6ad9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:40:18,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:40:18,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:40:18,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:40:18,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:40:18,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:40:18,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:40:18,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:40:18,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:40:18,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:40:18,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:40:18,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:40:18,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:40:18,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:40:18,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:40:18,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:40:18,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:40:18,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:40:18,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:40:18,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:40:18,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:40:18,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:40:18,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:40:18,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:40:18,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:40:18,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:40:18,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:40:18,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:40:18,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:40:18,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:40:18,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:40:18,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:40:18,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:40:18,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:40:18,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:40:18,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:40:18,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:40:18,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:40:18,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:40:18,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:40:18,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:40:18,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 05:40:18,740 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:40:18,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:40:18,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:40:18,741 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:40:18,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:40:18,741 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:40:18,741 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:40:18,741 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:40:18,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:40:18,742 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:40:18,742 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:40:18,742 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:40:18,742 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:40:18,742 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:40:18,743 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:40:18,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:40:18,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:40:18,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:40:18,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:40:18,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:40:18,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:40:18,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:40:18,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:40:18,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:40:18,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:40:18,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:40:18,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:40:18,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:40:18,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:40:18,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:40:18,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:40:18,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:40:18,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:40:18,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:40:18,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:40:18,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:40:18,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:40:18,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:40:18,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:40:18,748 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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-12-09 05:40:18,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:40:18,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:40:18,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:40:18,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:40:18,942 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:40:18,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-09 05:40:18,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/f501f74b7/389b93b123124a1bb5c65b8c918912e9/FLAG2db372949 [2020-12-09 05:40:19,373 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:40:19,373 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-09 05:40:19,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/f501f74b7/389b93b123124a1bb5c65b8c918912e9/FLAG2db372949 [2020-12-09 05:40:19,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/f501f74b7/389b93b123124a1bb5c65b8c918912e9 [2020-12-09 05:40:19,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:40:19,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:40:19,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:40:19,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:40:19,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:40:19,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425da816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19, skipping insertion in model container [2020-12-09 05:40:19,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:40:19,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:40:19,555 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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2020-12-09 05:40:19,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:40:19,564 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:40:19,593 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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2020-12-09 05:40:19,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:40:19,605 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:40:19,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19 WrapperNode [2020-12-09 05:40:19,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:40:19,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:40:19,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:40:19,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:40:19,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:40:19,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:40:19,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:40:19,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:40:19,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... [2020-12-09 05:40:19,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:40:19,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:40:19,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:40:19,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:40:19,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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 05:40:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:40:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:40:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 05:40:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 05:40:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 05:40:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:40:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:40:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 05:40:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 05:40:20,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:40:20,148 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-09 05:40:20,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:40:20 BoogieIcfgContainer [2020-12-09 05:40:20,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:40:20,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:40:20,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:40:20,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:40:20,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:40:19" (1/3) ... [2020-12-09 05:40:20,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129b1842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:40:20, skipping insertion in model container [2020-12-09 05:40:20,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:19" (2/3) ... [2020-12-09 05:40:20,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129b1842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:40:20, skipping insertion in model container [2020-12-09 05:40:20,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:40:20" (3/3) ... [2020-12-09 05:40:20,158 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-12-09 05:40:20,172 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:40:20,175 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:40:20,185 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:40:20,204 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:40:20,204 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:40:20,204 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:40:20,204 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:40:20,204 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:40:20,205 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:40:20,205 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:40:20,205 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:40:20,216 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-09 05:40:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 05:40:20,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:40:20,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:40:20,221 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:40:20,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:40:20,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1936370638, now seen corresponding path program 1 times [2020-12-09 05:40:20,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:40:20,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014949860] [2020-12-09 05:40:20,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:40:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:40:20,344 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 05:40:20,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014949860] [2020-12-09 05:40:20,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:40:20,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:40:20,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950323239] [2020-12-09 05:40:20,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 05:40:20,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:40:20,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 05:40:20,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 05:40:20,361 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-09 05:40:20,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:40:20,375 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2020-12-09 05:40:20,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 05:40:20,376 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 05:40:20,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:40:20,385 INFO L225 Difference]: With dead ends: 67 [2020-12-09 05:40:20,385 INFO L226 Difference]: Without dead ends: 32 [2020-12-09 05:40:20,388 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 05:40:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-09 05:40:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-09 05:40:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-09 05:40:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-12-09 05:40:20,418 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2020-12-09 05:40:20,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:40:20,418 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-12-09 05:40:20,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 05:40:20,419 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-12-09 05:40:20,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 05:40:20,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:40:20,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:40:20,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 05:40:20,419 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:40:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:40:20,420 INFO L82 PathProgramCache]: Analyzing trace with hash 2124742909, now seen corresponding path program 1 times [2020-12-09 05:40:20,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:40:20,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820003536] [2020-12-09 05:40:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:40:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:40:20,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:40:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:40:20,488 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:40:20,510 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 05:40:20,510 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 05:40:20,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 05:40:20,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:40:20 BoogieIcfgContainer [2020-12-09 05:40:20,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:40:20,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:40:20,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:40:20,540 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:40:20,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:40:20" (3/4) ... [2020-12-09 05:40:20,544 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 05:40:20,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:40:20,545 INFO L168 Benchmark]: Toolchain (without parser) took 1154.06 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 43.1 MB in the beginning and 56.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:20,546 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 83.9 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:40:20,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.38 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 52.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:20,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.03 ms. Allocated memory is still 83.9 MB. Free memory was 52.4 MB in the beginning and 50.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:20,548 INFO L168 Benchmark]: Boogie Preprocessor took 31.16 ms. Allocated memory is still 83.9 MB. Free memory was 50.0 MB in the beginning and 48.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:20,549 INFO L168 Benchmark]: RCFGBuilder took 478.90 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 48.2 MB in the beginning and 80.5 MB in the end (delta: -32.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:20,549 INFO L168 Benchmark]: TraceAbstraction took 387.10 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 56.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:20,550 INFO L168 Benchmark]: Witness Printer took 3.92 ms. Allocated memory is still 104.9 MB. Free memory was 56.8 MB in the beginning and 56.2 MB in the end (delta: 593.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:40:20,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 83.9 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 214.38 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 52.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.03 ms. Allocated memory is still 83.9 MB. Free memory was 52.4 MB in the beginning and 50.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.16 ms. Allocated memory is still 83.9 MB. Free memory was 50.0 MB in the beginning and 48.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 478.90 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 48.2 MB in the beginning and 80.5 MB in the end (delta: -32.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 387.10 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 56.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.92 ms. Allocated memory is still 104.9 MB. Free memory was 56.8 MB in the beginning and 56.2 MB in the end (delta: 593.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 161]: 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 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 118. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L156] float x = -1.0f / 0.0f; [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L157] float res = __ieee754_log10f(x); [L147] return x != x; [L160] COND TRUE !isnan_float(res) [L161] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 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: 41 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=34occurred 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 05:40:22,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:40:22,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:40:22,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:40:22,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:40:22,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:40:22,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:40:22,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:40:22,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:40:22,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:40:22,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:40:22,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:40:22,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:40:22,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:40:22,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:40:22,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:40:22,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:40:22,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:40:22,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:40:22,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:40:22,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:40:22,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:40:22,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:40:22,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:40:22,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:40:22,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:40:22,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:40:22,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:40:22,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:40:22,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:40:22,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:40:22,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:40:22,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:40:22,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:40:22,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:40:22,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:40:22,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:40:22,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:40:22,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:40:22,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:40:22,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:40:22,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 05:40:22,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:40:22,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:40:22,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:40:22,330 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:40:22,330 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:40:22,330 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:40:22,330 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:40:22,330 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:40:22,330 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:40:22,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:40:22,331 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:40:22,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:40:22,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:40:22,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:40:22,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:40:22,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:40:22,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:40:22,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 05:40:22,333 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 05:40:22,333 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:40:22,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:40:22,333 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:40:22,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:40:22,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:40:22,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 05:40:22,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:40:22,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:40:22,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:40:22,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:40:22,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:40:22,343 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 05:40:22,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 05:40:22,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:40:22,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:40:22,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:40:22,344 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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-12-09 05:40:22,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:40:22,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:40:22,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:40:22,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:40:22,605 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:40:22,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-09 05:40:22,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/c2b471be8/31a7abfe35934a589b3354683f006b9d/FLAG265dfb2ae [2020-12-09 05:40:23,040 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:40:23,040 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-12-09 05:40:23,046 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/c2b471be8/31a7abfe35934a589b3354683f006b9d/FLAG265dfb2ae [2020-12-09 05:40:23,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/data/c2b471be8/31a7abfe35934a589b3354683f006b9d [2020-12-09 05:40:23,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:40:23,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:40:23,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:40:23,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:40:23,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:40:23,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e52e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23, skipping insertion in model container [2020-12-09 05:40:23,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:40:23,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:40:23,225 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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2020-12-09 05:40:23,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:40:23,241 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:40:23,289 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_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2020-12-09 05:40:23,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:40:23,302 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:40:23,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23 WrapperNode [2020-12-09 05:40:23,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:40:23,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:40:23,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:40:23,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:40:23,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:40:23,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:40:23,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:40:23,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:40:23,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... [2020-12-09 05:40:23,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:40:23,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:40:23,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:40:23,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:40:23,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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 05:40:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 05:40:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:40:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 05:40:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 05:40:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:40:23,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:40:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 05:40:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 05:40:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 05:40:51,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:40:51,197 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-09 05:40:51,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:40:51 BoogieIcfgContainer [2020-12-09 05:40:51,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:40:51,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:40:51,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:40:51,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:40:51,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:40:23" (1/3) ... [2020-12-09 05:40:51,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4daea5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:40:51, skipping insertion in model container [2020-12-09 05:40:51,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:40:23" (2/3) ... [2020-12-09 05:40:51,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4daea5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:40:51, skipping insertion in model container [2020-12-09 05:40:51,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:40:51" (3/3) ... [2020-12-09 05:40:51,205 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-12-09 05:40:51,215 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:40:51,218 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:40:51,225 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:40:51,241 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:40:51,241 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:40:51,241 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:40:51,241 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:40:51,241 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:40:51,241 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:40:51,241 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:40:51,241 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:40:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-09 05:40:51,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 05:40:51,252 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:40:51,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:40:51,253 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:40:51,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:40:51,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-12-09 05:40:51,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:40:51,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633998101] [2020-12-09 05:40:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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 05:40:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:40:51,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 05:40:51,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:40:51,836 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 05:40:51,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 05:40:51,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633998101] [2020-12-09 05:40:51,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:40:51,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:40:51,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552656529] [2020-12-09 05:40:51,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 05:40:51,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:40:51,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 05:40:51,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 05:40:51,851 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-12-09 05:40:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:40:51,863 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2020-12-09 05:40:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 05:40:51,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 05:40:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:40:51,870 INFO L225 Difference]: With dead ends: 86 [2020-12-09 05:40:51,870 INFO L226 Difference]: Without dead ends: 41 [2020-12-09 05:40:51,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 05:40:51,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-09 05:40:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-09 05:40:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-09 05:40:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-12-09 05:40:51,894 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-12-09 05:40:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:40:51,894 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-12-09 05:40:51,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 05:40:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-12-09 05:40:51,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 05:40:51,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:40:51,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:40:52,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 05:40:52,097 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:40:52,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:40:52,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-12-09 05:40:52,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:40:52,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198645163] [2020-12-09 05:40:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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 05:40:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:40:52,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 05:40:52,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:40:52,800 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 05:40:52,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 05:40:52,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198645163] [2020-12-09 05:40:52,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:40:52,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 05:40:52,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868730387] [2020-12-09 05:40:52,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 05:40:52,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:40:52,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 05:40:52,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:40:52,805 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 4 states. [2020-12-09 05:40:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:40:55,022 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-12-09 05:40:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 05:40:55,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 05:40:55,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:40:55,024 INFO L225 Difference]: With dead ends: 46 [2020-12-09 05:40:55,024 INFO L226 Difference]: Without dead ends: 12 [2020-12-09 05:40:55,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 05:40:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-09 05:40:55,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-09 05:40:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 05:40:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-12-09 05:40:55,027 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-12-09 05:40:55,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:40:55,027 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-12-09 05:40:55,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 05:40:55,027 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-09 05:40:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 05:40:55,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:40:55,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:40:55,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 05:40:55,230 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:40:55,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:40:55,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-12-09 05:40:55,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:40:55,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093560192] [2020-12-09 05:40:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/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 05:40:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:40:55,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 05:40:55,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:40:56,103 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 05:40:56,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 05:40:56,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093560192] [2020-12-09 05:40:56,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:40:56,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 05:40:56,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886630366] [2020-12-09 05:40:56,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 05:40:56,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:40:56,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 05:40:56,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 05:40:56,106 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 7 states. [2020-12-09 05:40:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:40:56,748 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-12-09 05:40:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 05:40:56,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-09 05:40:56,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:40:56,749 INFO L225 Difference]: With dead ends: 12 [2020-12-09 05:40:56,749 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 05:40:56,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 05:40:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 05:40:56,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 05:40:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 05:40:56,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 05:40:56,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-09 05:40:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:40:56,750 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 05:40:56,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 05:40:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 05:40:56,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 05:40:56,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 05:40:56,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 05:40:57,251 INFO L262 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-12-09 05:40:57,251 INFO L262 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-12-09 05:40:57,251 INFO L262 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-12-09 05:40:57,251 INFO L262 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L258 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point L160(lines 160 163) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L258 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L258 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 05:40:57,252 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L258 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L258 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L258 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 05:40:57,253 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L265 CegarLoopResult]: At program point L165(lines 149 166) the Hoare annotation is: true [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L258 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L258 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-12-09 05:40:57,254 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-12-09 05:40:57,255 INFO L258 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-12-09 05:40:57,255 INFO L262 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-12-09 05:40:57,255 INFO L262 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-12-09 05:40:57,255 INFO L262 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-12-09 05:40:57,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:40:57 BoogieIcfgContainer [2020-12-09 05:40:57,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:40:57,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:40:57,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:40:57,274 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:40:57,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:40:51" (3/4) ... [2020-12-09 05:40:57,277 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 05:40:57,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-12-09 05:40:57,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-09 05:40:57,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 05:40:57,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 05:40:57,304 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 05:40:57,304 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 05:40:57,332 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a55c33a-aa1b-474e-9243-b59ca7cd2a3f/bin/utaipan/witness.graphml [2020-12-09 05:40:57,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:40:57,334 INFO L168 Benchmark]: Toolchain (without parser) took 34275.17 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 44.3 MB in the beginning and 44.5 MB in the end (delta: -181.2 kB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:57,334 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:40:57,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.14 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 44.3 MB in the end (delta: -236.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:57,335 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.95 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 41.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:57,335 INFO L168 Benchmark]: Boogie Preprocessor took 29.54 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 39.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:57,335 INFO L168 Benchmark]: RCFGBuilder took 27830.13 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 39.7 MB in the beginning and 49.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:57,335 INFO L168 Benchmark]: TraceAbstraction took 6073.53 ms. Allocated memory is still 83.9 MB. Free memory was 49.1 MB in the beginning and 50.2 MB in the end (delta: -1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:40:57,336 INFO L168 Benchmark]: Witness Printer took 58.33 ms. Allocated memory is still 83.9 MB. Free memory was 50.2 MB in the beginning and 44.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 05:40:57,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.14 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 44.3 MB in the end (delta: -236.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.95 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 41.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.54 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 39.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 27830.13 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 39.7 MB in the beginning and 49.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6073.53 ms. Allocated memory is still 83.9 MB. Free memory was 49.1 MB in the beginning and 50.2 MB in the end (delta: -1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 58.33 ms. Allocated memory is still 83.9 MB. Free memory was 50.2 MB in the beginning and 44.5 MB in the end (delta: 5.7 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 - 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: 161]: 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: 107]: Loop Invariant [2020-12-09 05:40:57,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2020-12-09 05:40:57,344 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-12-09 05:40:57,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 05:40:57,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 19 SDslu, 22 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 110 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 1921 SizeOfPredicates, 16 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 20 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...