./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_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer --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=/tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer --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 0.1.23-635dfa2 [2018-12-02 05:47:49,132 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 05:47:49,133 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 05:47:49,139 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 05:47:49,139 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 05:47:49,140 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 05:47:49,141 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 05:47:49,142 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 05:47:49,142 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 05:47:49,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 05:47:49,143 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 05:47:49,143 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 05:47:49,144 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 05:47:49,144 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 05:47:49,145 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 05:47:49,145 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 05:47:49,146 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 05:47:49,147 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 05:47:49,148 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 05:47:49,148 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 05:47:49,149 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 05:47:49,150 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 05:47:49,151 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 05:47:49,151 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 05:47:49,151 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 05:47:49,151 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 05:47:49,152 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 05:47:49,152 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 05:47:49,153 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 05:47:49,153 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 05:47:49,154 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 05:47:49,154 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 05:47:49,154 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 05:47:49,154 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 05:47:49,155 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 05:47:49,155 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 05:47:49,155 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 05:47:49,162 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 05:47:49,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 05:47:49,163 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 05:47:49,163 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 05:47:49,164 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 05:47:49,164 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 05:47:49,164 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 05:47:49,165 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 05:47:49,165 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 05:47:49,165 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 05:47:49,166 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 05:47:49,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 05:47:49,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 05:47:49,166 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_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer 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 [2018-12-02 05:47:49,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 05:47:49,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 05:47:49,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 05:47:49,193 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 05:47:49,193 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 05:47:49,193 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 05:47:49,228 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/2b1371833/59b2858bed3741b8a3defa21978ef7cc/FLAG156fb3a30 [2018-12-02 05:47:49,682 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 05:47:49,683 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 05:47:49,686 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/2b1371833/59b2858bed3741b8a3defa21978ef7cc/FLAG156fb3a30 [2018-12-02 05:47:49,694 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/2b1371833/59b2858bed3741b8a3defa21978ef7cc [2018-12-02 05:47:49,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 05:47:49,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 05:47:49,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 05:47:49,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 05:47:49,699 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 05:47:49,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed1acf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49, skipping insertion in model container [2018-12-02 05:47:49,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 05:47:49,714 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 05:47:49,806 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 05:47:49,809 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 05:47:49,823 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 05:47:49,835 INFO L195 MainTranslator]: Completed translation [2018-12-02 05:47:49,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49 WrapperNode [2018-12-02 05:47:49,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 05:47:49,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 05:47:49,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 05:47:49,836 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 05:47:49,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 05:47:49,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 05:47:49,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 05:47:49,851 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 05:47:49,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... [2018-12-02 05:47:49,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 05:47:49,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 05:47:49,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 05:47:49,901 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 05:47:49,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/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 05:47:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 05:47:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 05:47:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 05:47:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 05:47:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 05:47:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 05:47:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 05:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 05:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 05:47:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 05:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 05:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 05:47:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 05:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 05:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-02 05:47:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-02 05:47:50,073 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 05:47:50,073 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 05:47:50,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:50 BoogieIcfgContainer [2018-12-02 05:47:50,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 05:47:50,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 05:47:50,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 05:47:50,077 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 05:47:50,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:47:49" (1/3) ... [2018-12-02 05:47:50,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277fbb0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:47:50, skipping insertion in model container [2018-12-02 05:47:50,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:49" (2/3) ... [2018-12-02 05:47:50,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277fbb0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:47:50, skipping insertion in model container [2018-12-02 05:47:50,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:50" (3/3) ... [2018-12-02 05:47:50,080 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-02 05:47:50,089 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 05:47:50,095 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 05:47:50,109 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 05:47:50,129 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 05:47:50,129 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 05:47:50,130 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 05:47:50,130 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 05:47:50,130 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 05:47:50,130 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 05:47:50,130 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 05:47:50,130 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 05:47:50,130 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 05:47:50,140 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-02 05:47:50,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 05:47:50,144 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:47:50,144 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 05:47:50,146 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:47:50,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:47:50,150 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-02 05:47:50,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 05:47:50,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 05:47:50,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:47:50,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:47:50,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:47:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 05:47:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 05:47:50,265 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 05:47:50,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:47:50 BoogieIcfgContainer [2018-12-02 05:47:50,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 05:47:50,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 05:47:50,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 05:47:50,284 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 05:47:50,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:50" (3/4) ... [2018-12-02 05:47:50,287 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 05:47:50,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 05:47:50,287 INFO L168 Benchmark]: Toolchain (without parser) took 591.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -110.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:50,288 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 05:47:50,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.26 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:50,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.97 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 946.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:50,289 INFO L168 Benchmark]: Boogie Preprocessor took 50.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:50,290 INFO L168 Benchmark]: RCFGBuilder took 172.30 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:50,290 INFO L168 Benchmark]: TraceAbstraction took 209.67 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:50,290 INFO L168 Benchmark]: Witness Printer took 2.82 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 05:47:50,292 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.26 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 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 14.97 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 946.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 172.30 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 209.67 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 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 05:47:51,648 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 05:47:51,649 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 05:47:51,657 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 05:47:51,657 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 05:47:51,658 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 05:47:51,658 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 05:47:51,659 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 05:47:51,660 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 05:47:51,661 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 05:47:51,662 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 05:47:51,662 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 05:47:51,663 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 05:47:51,663 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 05:47:51,664 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 05:47:51,665 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 05:47:51,665 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 05:47:51,666 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 05:47:51,668 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 05:47:51,669 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 05:47:51,669 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 05:47:51,670 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 05:47:51,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 05:47:51,672 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 05:47:51,672 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 05:47:51,673 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 05:47:51,674 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 05:47:51,674 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 05:47:51,675 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 05:47:51,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 05:47:51,676 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 05:47:51,676 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 05:47:51,676 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 05:47:51,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 05:47:51,677 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 05:47:51,678 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 05:47:51,678 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 05:47:51,688 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 05:47:51,688 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 05:47:51,689 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 05:47:51,689 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 05:47:51,690 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 05:47:51,690 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 05:47:51,690 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 05:47:51,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 05:47:51,690 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 05:47:51,690 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 05:47:51,690 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 05:47:51,690 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 05:47:51,691 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 05:47:51,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 05:47:51,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 05:47:51,692 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 05:47:51,692 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 05:47:51,692 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 05:47:51,692 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 05:47:51,692 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 05:47:51,692 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 05:47:51,692 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 05:47:51,693 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 05:47:51,693 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 05:47:51,693 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 05:47:51,693 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_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer 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 [2018-12-02 05:47:51,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 05:47:51,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 05:47:51,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 05:47:51,730 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 05:47:51,730 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 05:47:51,731 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 05:47:51,775 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/8dfb7f909/3f297f84aad0441fb574491d9083ee60/FLAGdd75637ff [2018-12-02 05:47:52,085 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 05:47:52,085 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-02 05:47:52,089 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/8dfb7f909/3f297f84aad0441fb574491d9083ee60/FLAGdd75637ff [2018-12-02 05:47:52,504 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/data/8dfb7f909/3f297f84aad0441fb574491d9083ee60 [2018-12-02 05:47:52,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 05:47:52,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 05:47:52,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 05:47:52,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 05:47:52,511 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 05:47:52,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274b2289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52, skipping insertion in model container [2018-12-02 05:47:52,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 05:47:52,528 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 05:47:52,622 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 05:47:52,626 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 05:47:52,644 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 05:47:52,659 INFO L195 MainTranslator]: Completed translation [2018-12-02 05:47:52,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52 WrapperNode [2018-12-02 05:47:52,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 05:47:52,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 05:47:52,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 05:47:52,660 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 05:47:52,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 05:47:52,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 05:47:52,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 05:47:52,676 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 05:47:52,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... [2018-12-02 05:47:52,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 05:47:52,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 05:47:52,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 05:47:52,722 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 05:47:52,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/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 05:47:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-02 05:47:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-02 05:47:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 05:47:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 05:47:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 05:47:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 05:47:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 05:47:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 05:47:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 05:47:52,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 05:47:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 05:47:52,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 05:47:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 05:47:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 05:47:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-02 05:47:52,753 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-02 05:47:54,964 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 05:47:55,665 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 05:47:55,665 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 05:47:55,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:55 BoogieIcfgContainer [2018-12-02 05:47:55,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 05:47:55,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 05:47:55,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 05:47:55,668 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 05:47:55,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:47:52" (1/3) ... [2018-12-02 05:47:55,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570e5118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:47:55, skipping insertion in model container [2018-12-02 05:47:55,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:52" (2/3) ... [2018-12-02 05:47:55,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570e5118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:47:55, skipping insertion in model container [2018-12-02 05:47:55,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:55" (3/3) ... [2018-12-02 05:47:55,670 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-02 05:47:55,676 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 05:47:55,680 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 05:47:55,689 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 05:47:55,705 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 05:47:55,705 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 05:47:55,705 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 05:47:55,706 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 05:47:55,706 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 05:47:55,706 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 05:47:55,706 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 05:47:55,706 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 05:47:55,706 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 05:47:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-02 05:47:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 05:47:55,718 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:47:55,719 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 05:47:55,720 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:47:55,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:47:55,723 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-02 05:47:55,726 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 05:47:55,726 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/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 05:47:55,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:47:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 05:47:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 05:47:58,585 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 05:47:58,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:47:58 BoogieIcfgContainer [2018-12-02 05:47:58,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 05:47:58,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 05:47:58,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 05:47:58,623 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 05:47:58,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:55" (3/4) ... [2018-12-02 05:47:58,625 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 05:47:58,666 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_18e4f80c-75d6-4364-86cb-524a189cf906/bin-2019/uautomizer/witness.graphml [2018-12-02 05:47:58,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 05:47:58,667 INFO L168 Benchmark]: Toolchain (without parser) took 6159.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -120.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:58,668 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 05:47:58,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.32 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:58,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.26 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 05:47:58,669 INFO L168 Benchmark]: Boogie Preprocessor took 46.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:58,669 INFO L168 Benchmark]: RCFGBuilder took 2943.49 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:58,669 INFO L168 Benchmark]: TraceAbstraction took 2956.75 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-12-02 05:47:58,670 INFO L168 Benchmark]: Witness Printer took 43.15 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 05:47:58,672 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 151.32 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 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 15.26 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2943.49 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2956.75 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 43.15 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)=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...