./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/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 b63905375af38d9971341930078b6c47230c38fd ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/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 b63905375af38d9971341930078b6c47230c38fd .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:51:48,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:51:48,964 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:51:48,971 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:51:48,971 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:51:48,972 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:51:48,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:51:48,974 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:51:48,975 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:51:48,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:51:48,976 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:51:48,976 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:51:48,977 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:51:48,977 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:51:48,978 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:51:48,979 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:51:48,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:51:48,980 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:51:48,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:51:48,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:51:48,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:51:48,986 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:51:48,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:51:48,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:51:48,988 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:51:48,989 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:51:48,990 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:51:48,990 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:51:48,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:51:48,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:51:48,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:51:48,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:51:48,992 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:51:48,992 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:51:48,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:51:48,993 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:51:48,994 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:51:49,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:51:49,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:51:49,004 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:51:49,005 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:51:49,005 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:51:49,005 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:51:49,005 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:51:49,005 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:51:49,005 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:51:49,005 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:51:49,006 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:51:49,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:51:49,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:51:49,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:51:49,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:51:49,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:51:49,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:51:49,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:51:49,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:51:49,007 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:51:49,007 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:51:49,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:51:49,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:51:49,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:51:49,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:51:49,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:51:49,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:51:49,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:51:49,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:51:49,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:51:49,009 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:51:49,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:51:49,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:51:49,009 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:51:49,009 INFO L133 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/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/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 -> b63905375af38d9971341930078b6c47230c38fd [2018-11-10 05:51:49,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:51:49,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:51:49,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:51:49,041 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:51:49,042 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:51:49,042 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 05:51:49,077 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/b02297425/ef1e20142805439c89f13270e8996dfb/FLAG1c9c0f6dc [2018-11-10 05:51:49,492 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:51:49,492 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 05:51:49,496 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/b02297425/ef1e20142805439c89f13270e8996dfb/FLAG1c9c0f6dc [2018-11-10 05:51:49,505 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/b02297425/ef1e20142805439c89f13270e8996dfb [2018-11-10 05:51:49,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:51:49,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:51:49,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:51:49,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:51:49,511 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:51:49,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbc8502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49, skipping insertion in model container [2018-11-10 05:51:49,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:51:49,534 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:51:49,652 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:51:49,655 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:51:49,672 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:51:49,686 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:51:49,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49 WrapperNode [2018-11-10 05:51:49,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:51:49,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:51:49,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:51:49,687 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:51:49,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:51:49,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:51:49,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:51:49,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:51:49,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... [2018-11-10 05:51:49,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:51:49,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:51:49,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:51:49,736 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:51:49,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/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 [2018-11-10 05:51:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:51:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:51:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:51:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:51:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:51:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:51:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 05:51:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 05:51:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-11-10 05:51:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-11-10 05:51:50,032 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:51:50,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:51:50 BoogieIcfgContainer [2018-11-10 05:51:50,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:51:50,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:51:50,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:51:50,036 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:51:50,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:51:49" (1/3) ... [2018-11-10 05:51:50,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26563afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:51:50, skipping insertion in model container [2018-11-10 05:51:50,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:49" (2/3) ... [2018-11-10 05:51:50,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26563afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:51:50, skipping insertion in model container [2018-11-10 05:51:50,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:51:50" (3/3) ... [2018-11-10 05:51:50,038 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-11-10 05:51:50,045 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:51:50,050 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:51:50,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:51:50,096 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:51:50,097 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:51:50,097 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:51:50,097 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:51:50,097 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:51:50,097 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:51:50,097 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:51:50,097 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:51:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 05:51:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:51:50,116 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:51:50,117 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:51:50,119 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:51:50,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:51:50,124 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-11-10 05:51:50,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:51:50,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:51:50,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:51:50,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:51:50,165 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:51:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:51:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:51:50,286 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:51:50,297 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,298 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,298 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,298 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,299 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:51:50,299 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,299 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,300 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:51:50,300 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:51:50,300 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,300 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:51:50,301 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:51:50,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:51:50 BoogieIcfgContainer [2018-11-10 05:51:50,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:51:50,316 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:51:50,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:51:50,316 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:51:50,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:51:50" (3/4) ... [2018-11-10 05:51:50,320 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 05:51:50,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:51:50,321 INFO L168 Benchmark]: Toolchain (without parser) took 813.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -117.0 MB). Peak memory consumption was 4.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:51:50,322 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:51:50,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.24 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:51:50,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.02 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:51:50,323 INFO L168 Benchmark]: Boogie Preprocessor took 20.74 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:51:50,324 INFO L168 Benchmark]: RCFGBuilder took 296.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:51:50,324 INFO L168 Benchmark]: TraceAbstraction took 282.43 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:51:50,325 INFO L168 Benchmark]: Witness Printer took 4.19 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:51:50,327 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.24 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.02 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.74 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 296.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 282.43 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.19 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 33, overapproximation of someUnaryDOUBLEoperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 56. Possible FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=15, \old(C1)=25, \old(C2)=19, \old(C3)=26, \old(C4)=17, \old(C5)=23, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L26] CALL union u x; [L26] RET union u x; [L27] double r; [L28] int exp; [L30] CALL x.d = a [L30] RET x.d = a [L32] CALL, EXPR x.i[0] [L32] RET, EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L32] RET exp = (x.i[0] & 0x7FF00000) >> 20 [L33] CALL, EXPR x.i[0] [L33] RET, EXPR x.i[0] [L33] CALL x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L33] RET x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] CALL, EXPR x.d [L34] RET, EXPR x.d [L34] r = x.d * 0.5 [L34] RET r = x.d * 0.5 [L34] RET r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L45] CALL x.i[0] = (exp/2 + 511) << 20 [L45] RET x.i[0] = (exp/2 + 511) << 20 [L46] CALL, EXPR x.d [L46] RET, EXPR x.d [L46] r = r * x.d [L46] RET r = r * x.d [L46] RET r = r * x.d [L48] return r; [L48] RET return r; VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L58] EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=24, x=14] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-1dbac8b [2018-11-10 05:51:51,790 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:51:51,791 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:51:51,799 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:51:51,799 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:51:51,800 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:51:51,801 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:51:51,802 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:51:51,803 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:51:51,803 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:51:51,804 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:51:51,804 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:51:51,805 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:51:51,806 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:51:51,806 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:51:51,807 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:51:51,807 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:51:51,809 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:51:51,810 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:51:51,811 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:51:51,812 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:51:51,813 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:51:51,814 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:51:51,814 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:51:51,815 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:51:51,815 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:51:51,816 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:51:51,816 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:51:51,817 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:51:51,818 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:51:51,818 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:51:51,818 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:51:51,819 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:51:51,819 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:51:51,819 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:51:51,820 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:51:51,820 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 05:51:51,830 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:51:51,830 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:51:51,831 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:51:51,831 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:51:51,831 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:51:51,831 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:51:51,831 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:51:51,831 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:51:51,832 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:51:51,832 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:51:51,832 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:51:51,832 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:51:51,832 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:51:51,832 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:51:51,833 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:51:51,833 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:51:51,834 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 05:51:51,834 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/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 -> b63905375af38d9971341930078b6c47230c38fd [2018-11-10 05:51:51,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:51:51,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:51:51,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:51:51,875 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:51:51,876 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:51:51,876 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 05:51:51,912 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/6bb9324fd/54d3d046a42a441d8bc5c65e377ff7d6/FLAG9de524b68 [2018-11-10 05:51:52,243 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:51:52,244 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 05:51:52,248 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/6bb9324fd/54d3d046a42a441d8bc5c65e377ff7d6/FLAG9de524b68 [2018-11-10 05:51:52,256 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/data/6bb9324fd/54d3d046a42a441d8bc5c65e377ff7d6 [2018-11-10 05:51:52,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:51:52,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:51:52,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:51:52,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:51:52,262 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:51:52,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a44af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52, skipping insertion in model container [2018-11-10 05:51:52,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:51:52,285 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:51:52,401 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:51:52,406 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:51:52,432 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:51:52,450 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:51:52,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52 WrapperNode [2018-11-10 05:51:52,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:51:52,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:51:52,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:51:52,452 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:51:52,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:51:52,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:51:52,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:51:52,478 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:51:52,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... [2018-11-10 05:51:52,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:51:52,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:51:52,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:51:52,499 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:51:52,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/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 [2018-11-10 05:51:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:51:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:51:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:51:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:51:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:51:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:51:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 05:51:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 05:51:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-11-10 05:51:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-11-10 05:51:54,882 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 05:51:55,554 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:51:55,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:51:55 BoogieIcfgContainer [2018-11-10 05:51:55,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:51:55,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:51:55,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:51:55,559 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:51:55,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:51:52" (1/3) ... [2018-11-10 05:51:55,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d265919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:51:55, skipping insertion in model container [2018-11-10 05:51:55,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:51:52" (2/3) ... [2018-11-10 05:51:55,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d265919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:51:55, skipping insertion in model container [2018-11-10 05:51:55,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:51:55" (3/3) ... [2018-11-10 05:51:55,563 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-11-10 05:51:55,572 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:51:55,579 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:51:55,590 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:51:55,608 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:51:55,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:51:55,609 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:51:55,609 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:51:55,609 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:51:55,609 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:51:55,609 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:51:55,609 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:51:55,610 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:51:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 05:51:55,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:51:55,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:51:55,625 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:51:55,627 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:51:55,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:51:55,631 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-11-10 05:51:55,635 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:51:55,635 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/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 [2018-11-10 05:51:55,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:52:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:52:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:52:04,281 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:52:04,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,310 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:52:04 BoogieIcfgContainer [2018-11-10 05:52:04,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:52:04,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:52:04,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:52:04,340 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:52:04,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:51:55" (3/4) ... [2018-11-10 05:52:04,344 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:52:04,346 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,347 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,347 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,348 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,348 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,348 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,349 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,349 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,349 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,350 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,350 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:52:04,350 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:52:04,399 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ec24fc1e-df4d-4440-b12e-60d713765d10/bin-2019/utaipan/witness.graphml [2018-11-10 05:52:04,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:52:04,400 INFO L168 Benchmark]: Toolchain (without parser) took 12141.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:52:04,401 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:52:04,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.53 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 05:52:04,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:52:04,402 INFO L168 Benchmark]: Boogie Preprocessor took 20.69 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:52:04,403 INFO L168 Benchmark]: RCFGBuilder took 3056.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:52:04,403 INFO L168 Benchmark]: TraceAbstraction took 8784.06 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:52:04,404 INFO L168 Benchmark]: Witness Printer took 59.02 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. [2018-11-10 05:52:04,406 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.53 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.69 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 3056.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8784.06 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * Witness Printer took 59.02 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. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030, \old(C1)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, \old(C2)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000015, \old(C3)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, \old(C4)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, \old(C5)=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L26] CALL union u x; [L26] RET union u x; [L27] double r; [L28] int exp; [L30] CALL x.d = a [L30] RET x.d = a [L32] CALL, EXPR x.i[0] [L32] RET, EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L32] RET exp = (x.i[0] & 0x7FF00000) >> 20 [L33] CALL, EXPR x.i[0] [L33] RET, EXPR x.i[0] [L33] CALL x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L33] RET x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] CALL, EXPR x.d [L34] RET, EXPR x.d [L34] r = x.d * 0.5 [L34] RET r = x.d * 0.5 [L34] RET r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L45] CALL x.i[0] = (exp/2 + 511) << 20 [L45] RET x.i[0] = (exp/2 + 511) << 20 [L46] CALL, EXPR x.d [L46] RET, EXPR x.d [L46] r = r * x.d [L46] RET r = r * x.d [L46] RET r = r * x.d [L48] return r; [L48] RET return r; VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L58] EXPR sqrt_custom(x) VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, sqrt_custom(x)=-0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000031188282697963577, x=4294967296.673742] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 8.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 6.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...