./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 21:10:22,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:10:22,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:10:22,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:10:22,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:10:22,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:10:22,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:10:22,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:10:22,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:10:22,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:10:22,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:10:22,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:10:22,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:10:22,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:10:22,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:10:22,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:10:22,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:10:22,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:10:22,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:10:22,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:10:22,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:10:22,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:10:22,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:10:22,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:10:22,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:10:22,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:10:22,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:10:22,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:10:22,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:10:22,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:10:22,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:10:22,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:10:22,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:10:22,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:10:22,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:10:22,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:10:22,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:10:22,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:10:22,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:10:22,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:10:22,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:10:22,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:10:22,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:10:22,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:10:22,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:10:22,544 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:10:22,544 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:10:22,544 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:10:22,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:10:22,545 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:10:22,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:10:22,545 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:10:22,545 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:10:22,545 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:10:22,545 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:10:22,545 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:10:22,545 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:10:22,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:10:22,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:10:22,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:10:22,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:10:22,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:10:22,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:10:22,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:10:22,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:10:22,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:10:22,547 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:10:22,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:10:22,547 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:10:22,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:10:22,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:10:22,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:10:22,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:10:22,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:10:22,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:10:22,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:10:22,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:10:22,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:10:22,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:10:22,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:10:22,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:10:22,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:10:22,549 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_71b84e7c-509d-43f1-ab8b-b22797fa1a10/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(__VERIFIER_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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2019-12-07 21:10:22,648 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:10:22,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:10:22,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:10:22,663 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:10:22,663 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:10:22,664 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2019-12-07 21:10:22,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/a9b08e651/e66b57099c59477583941e56f3a6f350/FLAGb39a3792d [2019-12-07 21:10:23,023 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:10:23,023 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2019-12-07 21:10:23,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/a9b08e651/e66b57099c59477583941e56f3a6f350/FLAGb39a3792d [2019-12-07 21:10:23,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/a9b08e651/e66b57099c59477583941e56f3a6f350 [2019-12-07 21:10:23,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:10:23,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:10:23,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:10:23,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:10:23,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:10:23,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a8f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23, skipping insertion in model container [2019-12-07 21:10:23,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:10:23,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:10:23,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:10:23,198 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:10:23,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:10:23,225 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:10:23,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23 WrapperNode [2019-12-07 21:10:23,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:10:23,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:10:23,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:10:23,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:10:23,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:10:23,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:10:23,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:10:23,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:10:23,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... [2019-12-07 21:10:23,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:10:23,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:10:23,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:10:23,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:10:23,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/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 [2019-12-07 21:10:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:10:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 21:10:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 21:10:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 21:10:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:10:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:10:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 21:10:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 21:10:23,479 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:10:23,479 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 21:10:23,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:10:23 BoogieIcfgContainer [2019-12-07 21:10:23,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:10:23,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:10:23,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:10:23,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:10:23,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:10:23" (1/3) ... [2019-12-07 21:10:23,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fc3fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:10:23, skipping insertion in model container [2019-12-07 21:10:23,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:23" (2/3) ... [2019-12-07 21:10:23,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fc3fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:10:23, skipping insertion in model container [2019-12-07 21:10:23,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:10:23" (3/3) ... [2019-12-07 21:10:23,485 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2019-12-07 21:10:23,493 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:10:23,497 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:10:23,504 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:10:23,519 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:10:23,519 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:10:23,519 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:10:23,519 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:10:23,519 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:10:23,519 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:10:23,519 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:10:23,519 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:10:23,528 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 21:10:23,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 21:10:23,531 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:10:23,531 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 21:10:23,532 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:10:23,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:10:23,536 INFO L82 PathProgramCache]: Analyzing trace with hash 50198, now seen corresponding path program 1 times [2019-12-07 21:10:23,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:10:23,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294355296] [2019-12-07 21:10:23,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:10:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:10:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:10:23,635 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 21:10:23,635 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:10:23,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:10:23 BoogieIcfgContainer [2019-12-07 21:10:23,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:10:23,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:10:23,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:10:23,650 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:10:23,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:10:23" (3/4) ... [2019-12-07 21:10:23,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 21:10:23,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:10:23,654 INFO L168 Benchmark]: Toolchain (without parser) took 615.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 947.8 MB in the beginning and 1.0 GB in the end (delta: -101.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:10:23,655 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:10:23,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:10:23,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:10:23,656 INFO L168 Benchmark]: Boogie Preprocessor took 14.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:10:23,657 INFO L168 Benchmark]: RCFGBuilder took 211.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:10:23,657 INFO L168 Benchmark]: TraceAbstraction took 169.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:10:23,657 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:10:23,660 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 211.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 169.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 17. Possible FailurePath: [L40] float a,r; [L42] a = __VERIFIER_nondet_float() [L17] float xhalf = 0.5f*x; [L18] union float_int i; [L19] i.f = x [L20] EXPR i.i [L20] i.i = 0x5f3759df - (i.i>>1) [L21] EXPR i.f [L21] x = i.f [L22] x = x*(1.5f-xhalf*x*x) [L23] return x; [L23] return x; [L45] r = InvSqrt(a) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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 0.1.25-f470102 [2019-12-07 21:10:24,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:10:24,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:10:24,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:10:24,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:10:24,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:10:24,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:10:24,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:10:24,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:10:24,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:10:24,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:10:25,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:10:25,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:10:25,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:10:25,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:10:25,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:10:25,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:10:25,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:10:25,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:10:25,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:10:25,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:10:25,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:10:25,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:10:25,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:10:25,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:10:25,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:10:25,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:10:25,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:10:25,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:10:25,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:10:25,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:10:25,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:10:25,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:10:25,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:10:25,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:10:25,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:10:25,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:10:25,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:10:25,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:10:25,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:10:25,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:10:25,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:10:25,027 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:10:25,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:10:25,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:10:25,028 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:10:25,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:10:25,028 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:10:25,028 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:10:25,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:10:25,029 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:10:25,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:10:25,029 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:10:25,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:10:25,030 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:10:25,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:10:25,031 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:10:25,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:10:25,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:10:25,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:10:25,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:10:25,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:10:25,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:10:25,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:10:25,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:10:25,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:10:25,032 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:10:25,032 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:10:25,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:10:25,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:10:25,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:10:25,033 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_71b84e7c-509d-43f1-ab8b-b22797fa1a10/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(__VERIFIER_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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2019-12-07 21:10:25,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:10:25,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:10:25,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:10:25,213 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:10:25,213 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:10:25,214 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2019-12-07 21:10:25,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/363c3b8bd/a2050eb73f784196aeddf112e32e4f6b/FLAG1b5560bde [2019-12-07 21:10:25,586 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:10:25,586 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2019-12-07 21:10:25,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/363c3b8bd/a2050eb73f784196aeddf112e32e4f6b/FLAG1b5560bde [2019-12-07 21:10:25,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/bin/utaipan/data/363c3b8bd/a2050eb73f784196aeddf112e32e4f6b [2019-12-07 21:10:25,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:10:25,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:10:25,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:10:25,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:10:25,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:10:25,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@faaa545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25, skipping insertion in model container [2019-12-07 21:10:25,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:10:25,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:10:25,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:10:25,743 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:10:25,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:10:25,774 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:10:25,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25 WrapperNode [2019-12-07 21:10:25,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:10:25,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:10:25,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:10:25,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:10:25,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:10:25,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:10:25,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:10:25,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:10:25,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... [2019-12-07 21:10:25,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:10:25,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:10:25,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:10:25,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:10:25,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/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 [2019-12-07 21:10:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:10:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 21:10:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 21:10:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:10:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:10:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 21:10:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 21:10:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 21:10:28,074 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:10:28,075 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 21:10:28,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:10:28 BoogieIcfgContainer [2019-12-07 21:10:28,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:10:28,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:10:28,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:10:28,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:10:28,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:10:25" (1/3) ... [2019-12-07 21:10:28,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102776fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:10:28, skipping insertion in model container [2019-12-07 21:10:28,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:10:25" (2/3) ... [2019-12-07 21:10:28,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102776fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:10:28, skipping insertion in model container [2019-12-07 21:10:28,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:10:28" (3/3) ... [2019-12-07 21:10:28,080 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2019-12-07 21:10:28,087 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:10:28,091 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:10:28,098 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:10:28,113 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:10:28,114 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:10:28,114 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:10:28,114 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:10:28,114 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:10:28,114 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:10:28,114 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:10:28,115 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:10:28,123 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 21:10:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 21:10:28,128 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:10:28,128 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 21:10:28,129 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:10:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:10:28,132 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-12-07 21:10:28,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:10:28,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281034048] [2019-12-07 21:10:28,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71b84e7c-509d-43f1-ab8b-b22797fa1a10/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 [2019-12-07 21:10:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:10:29,153 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 21:10:29,158 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:10:31,221 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |c_ULTIMATE.start_InvSqrt_#res|) (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 21:10:33,243 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |c_ULTIMATE.start_InvSqrt_#res|) (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 21:10:33,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:10:35,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:10:49,568 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse2) .cse2)))))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse5) .cse5)))) (_ +zero 8 24)))))) .cse7) (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse8 (let ((.cse10 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse8 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse9) .cse8) .cse8))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))))) .cse7))) is different from false [2019-12-07 21:10:59,797 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))))) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse3) .cse4) .cse4)))) (_ +zero 8 24))))))) is different from false [2019-12-07 21:11:01,829 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))))) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse3) .cse4) .cse4)))) (_ +zero 8 24))))))) is different from true [2019-12-07 21:11:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:11:01,832 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:11:02,124 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-12-07 21:11:02,127 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:11:04,159 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.leq .cse1 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.geq (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse4) .cse3) .cse3)))) (_ +zero 8 24)) (not (fp.leq .cse4 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))))))) is different from false [2019-12-07 21:11:06,238 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.leq .cse1 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.geq (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse4) .cse3) .cse3)))) (_ +zero 8 24)) (not (fp.leq .cse4 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))))))) is different from true [2019-12-07 21:11:06,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:11:06,240 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281034048] [2019-12-07 21:11:06,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:11:06,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-12-07 21:11:06,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700817624] [2019-12-07 21:11:06,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 21:11:06,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:11:06,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 21:11:06,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=14, Unknown=7, NotChecked=36, Total=72 [2019-12-07 21:11:06,257 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 9 states. [2019-12-07 21:11:08,353 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.leq .cse1 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.geq (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse4) .cse3) .cse3)))) (_ +zero 8 24)) (not (fp.leq .cse4 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 21:11:10,428 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.leq .cse1 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (fp.geq (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse4) .cse3) .cse3)))) (_ +zero 8 24)) (not (fp.leq .cse4 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse4 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 21:11:12,470 WARN L838 $PredicateComparison]: unable to prove that (and (fp.geq |c_ULTIMATE.start_InvSqrt_#res| (_ +zero 8 24)) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |c_ULTIMATE.start_InvSqrt_#res|) (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))))) (= c_currentRoundingMode roundNearestTiesToEven) (fp.leq ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_InvSqrt_#res|) ((_ to_fp 11 53) c_currentRoundingMode 10.0))) is different from false [2019-12-07 21:11:14,548 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse2) .cse2)))))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse5) .cse5)))) (_ +zero 8 24)))))) .cse7) (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse8 (let ((.cse10 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse8 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse9) .cse8) .cse8))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse9 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))))) .cse7)) (not .cse7))) is different from false [2019-12-07 21:11:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:11:14,556 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-12-07 21:11:14,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 21:11:14,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-12-07 21:11:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:11:14,563 INFO L225 Difference]: With dead ends: 14 [2019-12-07 21:11:14,563 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 21:11:14,565 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=21, Invalid=16, Unknown=11, NotChecked=84, Total=132 [2019-12-07 21:11:14,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 21:11:14,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 21:11:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 21:11:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 21:11:14,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 21:11:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:11:14,583 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 21:11:14,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 21:11:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 21:11:14,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 21:11:14,784 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:11:14,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 21:11:33,344 WARN L192 SmtUtils]: Spent 18.50 s on a formula simplification that was a NOOP. DAG size: 43 [2019-12-07 21:11:33,346 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 21:11:33,347 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 21:11:33,347 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 21:11:33,347 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 21:11:33,347 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 21:11:33,348 INFO L242 CegarLoopResult]: At program point L23(lines 15 24) the Hoare annotation is: (and (fp.geq |ULTIMATE.start_InvSqrt_#res| (_ +zero 8 24)) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) currentRoundingMode 100.0)) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul currentRoundingMode .cse1 (fp.sub currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 3.0 2.0)) (fp.mul currentRoundingMode (fp.mul currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |ULTIMATE.start_InvSqrt_#res|) (fp.geq .cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 10.0)))))) (= currentRoundingMode roundNearestTiesToEven) (fp.leq ((_ to_fp 11 53) currentRoundingMode |ULTIMATE.start_InvSqrt_#res|) ((_ to_fp 11 53) currentRoundingMode 10.0))) [2019-12-07 21:11:33,348 INFO L249 CegarLoopResult]: At program point L48(lines 38 49) the Hoare annotation is: true [2019-12-07 21:11:33,348 INFO L246 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2019-12-07 21:11:33,348 INFO L246 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-12-07 21:11:33,348 INFO L249 CegarLoopResult]: At program point L8-3(line 8) the Hoare annotation is: true [2019-12-07 21:11:33,356 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:258) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-12-07 21:11:33,359 INFO L168 Benchmark]: Toolchain (without parser) took 67754.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -106.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:11:33,359 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:11:33,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 940.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:11:33,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:11:33,361 INFO L168 Benchmark]: Boogie Preprocessor took 18.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:11:33,362 INFO L168 Benchmark]: RCFGBuilder took 2226.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:11:33,362 INFO L168 Benchmark]: TraceAbstraction took 65281.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:11:33,365 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 940.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2226.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 65281.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...