./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/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_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/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_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/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_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/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 0.1.23-635dfa2 [2018-12-02 15:00:47,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:00:47,532 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:00:47,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:00:47,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:00:47,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:00:47,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:00:47,540 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:00:47,541 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:00:47,542 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:00:47,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:00:47,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:00:47,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:00:47,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:00:47,544 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:00:47,544 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:00:47,544 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:00:47,545 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:00:47,546 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:00:47,547 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:00:47,547 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:00:47,548 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:00:47,549 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:00:47,549 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:00:47,549 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:00:47,550 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:00:47,550 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:00:47,551 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:00:47,551 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:00:47,552 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:00:47,552 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:00:47,552 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:00:47,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:00:47,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:00:47,553 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:00:47,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:00:47,553 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 15:00:47,560 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:00:47,561 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:00:47,561 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:00:47,561 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:00:47,561 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 15:00:47,561 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 15:00:47,562 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 15:00:47,562 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 15:00:47,562 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 15:00:47,562 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 15:00:47,562 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 15:00:47,562 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 15:00:47,562 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 15:00:47,562 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:00:47,563 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:00:47,563 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:00:47,564 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 15:00:47,564 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 15:00:47,565 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_6bc8f0e4-de59-49e1-b419-b6499025419c/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 [2018-12-02 15:00:47,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:00:47,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:00:47,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:00:47,591 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:00:47,591 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:00:47,592 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 15:00:47,626 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/5c39a82e4/7b342cb4da324f7dbb25fc442a7ed239/FLAG6e788d3b5 [2018-12-02 15:00:48,009 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:00:48,009 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 15:00:48,013 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/5c39a82e4/7b342cb4da324f7dbb25fc442a7ed239/FLAG6e788d3b5 [2018-12-02 15:00:48,383 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/5c39a82e4/7b342cb4da324f7dbb25fc442a7ed239 [2018-12-02 15:00:48,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:00:48,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:00:48,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:00:48,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:00:48,388 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:00:48,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ddcec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48, skipping insertion in model container [2018-12-02 15:00:48,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:00:48,408 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:00:48,511 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:00:48,514 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:00:48,528 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:00:48,540 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:00:48,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48 WrapperNode [2018-12-02 15:00:48,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:00:48,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:00:48,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:00:48,541 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:00:48,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:00:48,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:00:48,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:00:48,555 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:00:48,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... [2018-12-02 15:00:48,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:00:48,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:00:48,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:00:48,600 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:00:48,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/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 [2018-12-02 15:00:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 15:00:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 15:00:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 15:00:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 15:00:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:00:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 15:00:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 15:00:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-02 15:00:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-02 15:00:48,745 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:00:48,745 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 15:00:48,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:48 BoogieIcfgContainer [2018-12-02 15:00:48,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:00:48,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:00:48,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:00:48,748 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:00:48,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:00:48" (1/3) ... [2018-12-02 15:00:48,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445aba69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:48, skipping insertion in model container [2018-12-02 15:00:48,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:48" (2/3) ... [2018-12-02 15:00:48,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445aba69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:48, skipping insertion in model container [2018-12-02 15:00:48,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:48" (3/3) ... [2018-12-02 15:00:48,750 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-02 15:00:48,756 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:00:48,761 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:00:48,771 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:00:48,790 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:00:48,791 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:00:48,791 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:00:48,791 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:00:48,791 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:00:48,791 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:00:48,791 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:00:48,791 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:00:48,801 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-02 15:00:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 15:00:48,805 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:00:48,805 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:00:48,806 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:00:48,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:00:48,810 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-02 15:00:48,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:00:48,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:00:48,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:00:48,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:00:48,840 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:00:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:00:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:00:48,923 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 15:00:48,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:00:48 BoogieIcfgContainer [2018-12-02 15:00:48,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:00:48,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:00:48,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:00:48,942 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:00:48,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:48" (3/4) ... [2018-12-02 15:00:48,944 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 15:00:48,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:00:48,945 INFO L168 Benchmark]: Toolchain (without parser) took 559.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:00:48,946 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:00:48,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.13 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:48,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.46 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:48,947 INFO L168 Benchmark]: Boogie Preprocessor took 44.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:48,947 INFO L168 Benchmark]: RCFGBuilder took 145.88 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:48,948 INFO L168 Benchmark]: TraceAbstraction took 195.89 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: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:48,948 INFO L168 Benchmark]: Witness Printer took 2.67 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. [2018-12-02 15:00:48,950 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.13 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.46 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 145.88 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 195.89 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: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.67 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.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 60. 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)=13, \old(C1)=28, \old(C2)=16, \old(C3)=31, \old(C4)=15, \old(C5)=25, 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 [\old(a)=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={24:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={24:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=12, \result=27, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=27] [L58] RET, EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=27, x=12] [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, 0.1s 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 0.1.23-635dfa2 [2018-12-02 15:00:50,321 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:00:50,322 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:00:50,328 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:00:50,328 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:00:50,328 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:00:50,329 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:00:50,330 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:00:50,330 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:00:50,331 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:00:50,331 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:00:50,331 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:00:50,332 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:00:50,332 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:00:50,333 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:00:50,333 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:00:50,333 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:00:50,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:00:50,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:00:50,336 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:00:50,336 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:00:50,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:00:50,338 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:00:50,338 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:00:50,338 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:00:50,338 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:00:50,339 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:00:50,339 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:00:50,340 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:00:50,340 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:00:50,340 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:00:50,341 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:00:50,341 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:00:50,341 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:00:50,341 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:00:50,342 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:00:50,342 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 15:00:50,349 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:00:50,349 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:00:50,350 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:00:50,350 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:00:50,350 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 15:00:50,350 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 15:00:50,350 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 15:00:50,350 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 15:00:50,350 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 15:00:50,350 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 15:00:50,351 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:00:50,351 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:00:50,351 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:00:50,351 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:00:50,351 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:00:50,351 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:00:50,351 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:00:50,352 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:00:50,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:00:50,353 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:00:50,353 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:00:50,353 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:00:50,353 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 15:00:50,353 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:00:50,353 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 15:00:50,353 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 15:00:50,353 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_6bc8f0e4-de59-49e1-b419-b6499025419c/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 [2018-12-02 15:00:50,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:00:50,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:00:50,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:00:50,384 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:00:50,385 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:00:50,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 15:00:50,430 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/a14194d20/4cbedd73ffb24cb3904b558b2b69c938/FLAGcdb6fb24d [2018-12-02 15:00:50,728 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:00:50,729 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 15:00:50,732 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/a14194d20/4cbedd73ffb24cb3904b558b2b69c938/FLAGcdb6fb24d [2018-12-02 15:00:50,740 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/data/a14194d20/4cbedd73ffb24cb3904b558b2b69c938 [2018-12-02 15:00:50,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:00:50,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:00:50,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:00:50,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:00:50,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:00:50,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736e3ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50, skipping insertion in model container [2018-12-02 15:00:50,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:00:50,762 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:00:50,856 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:00:50,860 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:00:50,878 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:00:50,894 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:00:50,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50 WrapperNode [2018-12-02 15:00:50,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:00:50,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:00:50,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:00:50,895 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:00:50,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:00:50,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:00:50,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:00:50,911 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:00:50,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... [2018-12-02 15:00:50,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:00:50,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:00:50,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:00:50,964 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:00:50,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/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 [2018-12-02 15:00:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-02 15:00:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-02 15:00:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 15:00:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 15:00:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 15:00:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 15:00:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:00:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 15:00:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:00:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:00:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 15:00:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 15:00:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 15:00:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 15:00:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-02 15:00:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-02 15:00:53,210 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:00:53,962 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:00:53,963 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 15:00:53,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:53 BoogieIcfgContainer [2018-12-02 15:00:53,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:00:53,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:00:53,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:00:53,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:00:53,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:00:50" (1/3) ... [2018-12-02 15:00:53,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80fe662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:53, skipping insertion in model container [2018-12-02 15:00:53,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:50" (2/3) ... [2018-12-02 15:00:53,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80fe662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:53, skipping insertion in model container [2018-12-02 15:00:53,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:53" (3/3) ... [2018-12-02 15:00:53,968 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-02 15:00:53,973 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:00:53,978 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:00:53,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:00:54,004 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 15:00:54,004 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:00:54,004 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:00:54,005 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:00:54,005 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:00:54,005 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:00:54,005 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:00:54,005 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:00:54,005 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:00:54,014 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-02 15:00:54,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 15:00:54,017 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:00:54,018 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:00:54,019 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:00:54,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:00:54,022 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-02 15:00:54,025 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 15:00:54,025 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/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 [2018-12-02 15:00:54,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:00:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:00:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:00:56,926 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 15:00:56,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:00:56 BoogieIcfgContainer [2018-12-02 15:00:56,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:00:56,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:00:56,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:00:56,960 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:00:56,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:53" (3/4) ... [2018-12-02 15:00:56,962 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 15:00:56,993 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6bc8f0e4-de59-49e1-b419-b6499025419c/bin-2019/utaipan/witness.graphml [2018-12-02 15:00:56,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:00:56,994 INFO L168 Benchmark]: Toolchain (without parser) took 6251.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:56,995 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:00:56,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.86 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:56,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.95 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:00:56,996 INFO L168 Benchmark]: Boogie Preprocessor took 53.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:56,996 INFO L168 Benchmark]: RCFGBuilder took 2999.20 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:56,996 INFO L168 Benchmark]: TraceAbstraction took 2996.10 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. [2018-12-02 15:00:56,996 INFO L168 Benchmark]: Witness Printer took 33.82 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 15:00:56,998 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.86 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 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 15.95 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2999.20 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2996.10 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. * Witness Printer took 33.82 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * 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 [\old(a)=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=-13704217330150313000000000000, x={2:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-13704217330150313000000000000, x={2:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=9731564545.6875, \result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011] [L58] RET, 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)=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, x=9731564545.6875] [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, 2.9s 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, 1.2s 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...