/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/sqrt_poly2_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/sqrt_poly2_false-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/sqrt_poly2_false-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --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 0.1.23-40ef509 [2018-09-20 13:49:12,825 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:49:12,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:49:12,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:49:12,850 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:49:12,852 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:49:12,853 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:49:12,856 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:49:12,858 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:49:12,861 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:49:12,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:49:12,864 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:49:12,865 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:49:12,869 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:49:12,870 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:49:12,879 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:49:12,880 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:49:12,885 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:49:12,887 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:49:12,890 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:49:12,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:49:12,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:49:12,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:49:12,898 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:49:12,898 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:49:12,899 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:49:12,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:49:12,903 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:49:12,908 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:49:12,909 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:49:12,909 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:49:12,910 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:49:12,910 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:49:12,910 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:49:12,911 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:49:12,912 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:49:12,912 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:49:12,935 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:49:12,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:49:12,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:49:12,941 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:49:12,942 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:49:12,943 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:49:12,943 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:49:12,943 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:49:12,943 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:49:12,945 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:49:12,945 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:49:12,946 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:49:12,946 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:49:12,946 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:49:12,946 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:49:12,947 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:49:12,947 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:49:12,948 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:49:12,948 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:49:12,948 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:49:12,948 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:49:12,948 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:49:12,949 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:49:12,949 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:49:12,949 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:49:12,949 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:49:12,949 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:49:12,953 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:49:12,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:49:12,953 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 [2018-09-20 13:49:13,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:49:13,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:49:13,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:49:13,068 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:49:13,069 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:49:13,070 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly2_false-unreach-call.c [2018-09-20 13:49:13,426 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d265a047/764d9b297d7b435f94d2199b1e0f88e5/FLAGb0d5b4b0a [2018-09-20 13:49:13,557 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:49:13,557 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly2_false-unreach-call.c [2018-09-20 13:49:13,565 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d265a047/764d9b297d7b435f94d2199b1e0f88e5/FLAGb0d5b4b0a [2018-09-20 13:49:13,581 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d265a047/764d9b297d7b435f94d2199b1e0f88e5 [2018-09-20 13:49:13,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:49:13,589 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:49:13,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:49:13,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:49:13,597 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:49:13,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:13,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e461275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13, skipping insertion in model container [2018-09-20 13:49:13,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:13,615 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:49:13,886 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:49:13,910 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:49:13,933 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:49:13,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13 WrapperNode [2018-09-20 13:49:13,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:49:13,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:49:13,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:49:13,973 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:49:13,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:13,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:14,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:14,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:14,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:14,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:14,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... [2018-09-20 13:49:14,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:49:14,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:49:14,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:49:14,037 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:49:14,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:49:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:49:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:49:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:49:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-09-20 13:49:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:49:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:49:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 13:49:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:49:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:49:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-09-20 13:49:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 13:49:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 13:49:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 13:49:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 13:49:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 13:49:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 13:49:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:49:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:49:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:49:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 13:49:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 13:49:14,772 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:49:14,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:14 BoogieIcfgContainer [2018-09-20 13:49:14,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:49:14,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:49:14,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:49:14,779 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:49:14,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:49:13" (1/3) ... [2018-09-20 13:49:14,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea62302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:49:14, skipping insertion in model container [2018-09-20 13:49:14,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:13" (2/3) ... [2018-09-20 13:49:14,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea62302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:49:14, skipping insertion in model container [2018-09-20 13:49:14,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:14" (3/3) ... [2018-09-20 13:49:14,784 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-09-20 13:49:14,794 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:49:14,802 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:49:14,847 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:49:14,848 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:49:14,848 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:49:14,848 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:49:14,848 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:49:14,848 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:49:14,849 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:49:14,849 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:49:14,849 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:49:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-09-20 13:49:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-20 13:49:14,877 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:49:14,878 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:49:14,881 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:49:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1706602143, now seen corresponding path program 1 times [2018-09-20 13:49:14,889 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:49:14,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:49:14,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:49:14,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:49:14,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:49:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:49:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:49:15,162 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:49:15,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:49:15 BoogieIcfgContainer [2018-09-20 13:49:15,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:49:15,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:49:15,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:49:15,209 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:49:15,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:14" (3/4) ... [2018-09-20 13:49:15,214 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:49:15,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:49:15,215 INFO L168 Benchmark]: Toolchain (without parser) took 1629.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 301.9 kB. Max. memory is 11.5 GB. [2018-09-20 13:49:15,218 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-09-20 13:49:15,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.65 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:15,220 INFO L168 Benchmark]: Boogie Preprocessor took 64.00 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:15,221 INFO L168 Benchmark]: RCFGBuilder took 737.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:15,222 INFO L168 Benchmark]: TraceAbstraction took 432.44 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:15,223 INFO L168 Benchmark]: Witness Printer took 7.10 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. [2018-09-20 13:49:15,230 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 381.65 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.00 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 737.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 432.44 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Witness Printer took 7.10 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 bitwiseAnd at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 46, 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)=534773765, \old(C1)=534773776, \old(C2)=534773770, \old(C3)=534773777, \old(C4)=534773767, \old(C5)=534773772, 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)=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L26] FCALL union u x; VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}] [L27] double r; [L28] int exp; VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}] [L30] FCALL x.d = a VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}] [L32] EXPR, FCALL x.i[0] VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}, x.i[0]=534773771] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.i[0]=534773771] [L32] FCALL exp = (x.i[0] & 0x7FF00000) >> 20 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, exp = (x.i[0] & 0x7FF00000) >> 20=534773762, x={534773774:0}, x.i[0]=534773771] [L33] EXPR, FCALL x.i[0] VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.i[0]=534773771] [L33] FCALL x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.i[0]=534773771] [L34] EXPR, FCALL x.d VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.d=534773762] [L34] r = x.d * 0.5 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.d=534773762] [L34] FCALL r = x.d * 0.5 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.d=534773762] [L34] FCALL r = x.d * 0.5 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.d=534773762] [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ [L39] exp++ [L45] FCALL x.i[0] = (exp/2 + 511) << 20 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}] [L46] EXPR, FCALL x.d VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}, x.d=534773762] [L46] r = r * x.d VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}, x.d=534773762] [L46] FCALL r = r * x.d VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}, x.d=534773762] [L46] FCALL r = r * x.d VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}, x.d=534773762] [L48] return r; VAL [\old(a)=534773764, \result=534773773, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=534773773, x={534773774:0}] [L48] RET return r; VAL [\old(a)=534773764, \result=534773773, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=534773773] [L58] EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=534773773, x=534773764] [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, 47 locations, 1 error locations. UNSAFE Result, 0.3s 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=47occurred 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, 39 NumberOfCodeBlocks, 39 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 0.1.23-40ef509 [2018-09-20 13:49:17,640 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:49:17,642 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:49:17,656 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:49:17,656 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:49:17,657 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:49:17,658 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:49:17,660 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:49:17,662 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:49:17,663 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:49:17,664 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:49:17,664 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:49:17,665 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:49:17,666 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:49:17,667 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:49:17,668 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:49:17,669 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:49:17,671 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:49:17,673 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:49:17,675 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:49:17,676 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:49:17,677 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:49:17,680 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:49:17,680 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:49:17,680 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:49:17,681 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:49:17,682 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:49:17,683 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:49:17,684 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:49:17,685 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:49:17,685 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:49:17,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:49:17,686 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:49:17,687 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:49:17,688 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:49:17,689 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:49:17,689 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:49:17,707 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:49:17,707 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:49:17,708 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:49:17,708 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:49:17,709 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:49:17,709 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:49:17,709 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:49:17,710 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:49:17,710 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:49:17,710 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:49:17,710 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:49:17,710 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:49:17,711 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:49:17,711 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:49:17,711 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:49:17,711 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:49:17,711 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:49:17,711 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:49:17,712 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:49:17,712 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:49:17,712 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:49:17,712 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:49:17,713 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:49:17,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:49:17,713 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:49:17,713 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:49:17,713 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:49:17,714 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:49:17,714 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:49:17,714 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:49:17,714 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:49:17,714 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 [2018-09-20 13:49:17,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:49:17,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:49:17,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:49:17,787 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:49:17,788 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:49:17,789 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly2_false-unreach-call.c [2018-09-20 13:49:18,138 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f680391f/6151ba0f50734765ab57095604c464c4/FLAG31329aa32 [2018-09-20 13:49:18,328 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:49:18,329 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly2_false-unreach-call.c [2018-09-20 13:49:18,337 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f680391f/6151ba0f50734765ab57095604c464c4/FLAG31329aa32 [2018-09-20 13:49:18,354 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f680391f/6151ba0f50734765ab57095604c464c4 [2018-09-20 13:49:18,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:49:18,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:49:18,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:49:18,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:49:18,372 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:49:18,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b3ca2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18, skipping insertion in model container [2018-09-20 13:49:18,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,390 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:49:18,660 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:49:18,684 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:49:18,723 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:49:18,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18 WrapperNode [2018-09-20 13:49:18,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:49:18,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:49:18,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:49:18,785 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:49:18,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... [2018-09-20 13:49:18,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:49:18,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:49:18,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:49:18,866 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:49:18,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:49:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:49:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:49:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:49:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-09-20 13:49:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:49:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:49:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 13:49:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:49:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:49:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-09-20 13:49:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 13:49:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 13:49:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 13:49:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 13:49:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 13:49:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 13:49:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:49:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:49:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:49:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 13:49:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 13:49:19,469 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 13:49:19,507 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 13:49:22,560 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:49:22,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:22 BoogieIcfgContainer [2018-09-20 13:49:22,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:49:22,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:49:22,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:49:22,565 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:49:22,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:49:18" (1/3) ... [2018-09-20 13:49:22,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6db080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:49:22, skipping insertion in model container [2018-09-20 13:49:22,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:18" (2/3) ... [2018-09-20 13:49:22,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6db080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:49:22, skipping insertion in model container [2018-09-20 13:49:22,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:22" (3/3) ... [2018-09-20 13:49:22,569 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-09-20 13:49:22,579 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:49:22,586 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:49:22,630 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:49:22,631 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:49:22,631 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:49:22,631 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:49:22,631 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:49:22,631 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:49:22,632 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:49:22,632 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:49:22,632 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:49:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-09-20 13:49:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-20 13:49:22,659 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:49:22,661 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:49:22,663 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:49:22,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1706602143, now seen corresponding path program 1 times [2018-09-20 13:49:22,675 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:49:22,676 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:49:22,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:49:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:49:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:49:29,220 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:49:29,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:49:29 BoogieIcfgContainer [2018-09-20 13:49:29,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:49:29,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:49:29,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:49:29,349 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:49:29,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:22" (3/4) ... [2018-09-20 13:49:29,352 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:49:29,449 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:49:29,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:49:29,451 INFO L168 Benchmark]: Toolchain (without parser) took 11092.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -125.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:29,453 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-20 13:49:29,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.39 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:29,454 INFO L168 Benchmark]: Boogie Preprocessor took 80.16 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:29,454 INFO L168 Benchmark]: RCFGBuilder took 3695.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:29,455 INFO L168 Benchmark]: TraceAbstraction took 6786.02 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:29,455 INFO L168 Benchmark]: Witness Printer took 101.39 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. [2018-09-20 13:49:29,458 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 420.39 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.16 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3695.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6786.02 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Witness Printer took 101.39 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: - 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)=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L26] FCALL union u x; VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}] [L27] double r; [L28] int exp; VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}] [L30] FCALL x.d = a VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}] [L32] EXPR, FCALL x.i[0] VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}, x.i[0]=537624320] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, x={2:0}, x.i[0]=537624320] [L32] FCALL exp = (x.i[0] & 0x7FF00000) >> 20 VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, exp = (x.i[0] & 0x7FF00000) >> 20=1.4920893909219899, x={2:0}, x.i[0]=537624320] [L33] EXPR, FCALL x.i[0] VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, x={2:0}, x.i[0]=537624320] [L33] FCALL x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, x={2:0}, x.i[0]=537624320] [L34] EXPR, FCALL x.d VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, x={2:0}, x.d=1.4920895098984488] [L34] r = x.d * 0.5 VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=0.7460447549492244, x={2:0}, x.d=1.4920895098984488] [L34] FCALL r = x.d * 0.5 VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=0.7460447549492244, x={2:0}, x.d=1.4920895098984488] [L34] FCALL r = x.d * 0.5 VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=0.7460447549492244, x={2:0}, x.d=1.4920895098984488] [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=1.079544644725148, x={2:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ [L39] exp++ [L45] FCALL x.i[0] = (exp/2 + 511) << 20 VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=1.079544644725148, x={2:0}] [L46] EXPR, FCALL x.d VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=1.079544644725148, x={2:0}, x.d=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000347671763953204] [L46] r = r * x.d VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825, x={2:0}, x.d=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000347671763953204] [L46] FCALL r = r * x.d VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825, x={2:0}, x.d=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000347671763953204] [L46] FCALL r = r * x.d VAL [\old(a)=1.4920893909219899, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825, x={2:0}, x.d=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000347671763953204] [L48] return r; VAL [\old(a)=1.4920893909219899, \result=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825, x={2:0}] [L48] RET return r; VAL [\old(a)=1.4920893909219899, \result=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825, a=1.4920893909219899, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825] [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)=-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000375327190897825, x=1.4920893909219899] [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, 47 locations, 1 error locations. UNSAFE Result, 6.7s 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=47occurred 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, 1.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 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...