./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/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 788527977e7ebd7aa0a832758f41b65d3cbd270a ..................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/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 788527977e7ebd7aa0a832758f41b65d3cbd270a .................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 17:30:05,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:30:05,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:30:05,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:30:05,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:30:05,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:30:05,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:30:05,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:30:05,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:30:05,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:30:05,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:30:05,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:30:05,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:30:05,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:30:05,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:30:05,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:30:05,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:30:05,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:30:05,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:30:05,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:30:05,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:30:05,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:30:05,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:30:05,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:30:05,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:30:05,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:30:05,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:30:05,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:30:05,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:30:05,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:30:05,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:30:05,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:30:05,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:30:05,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:30:05,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:30:05,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:30:05,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:30:05,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:30:05,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:30:05,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:30:05,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:30:05,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:30:05,236 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:30:05,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:30:05,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:30:05,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:30:05,237 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:30:05,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:30:05,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:30:05,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:30:05,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:30:05,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:30:05,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:30:05,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:30:05,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:30:05,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:30:05,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:30:05,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:30:05,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:30:05,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:30:05,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:30:05,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:30:05,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:30:05,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/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 -> 788527977e7ebd7aa0a832758f41b65d3cbd270a [2019-12-07 17:30:05,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:30:05,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:30:05,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:30:05,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:30:05,354 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:30:05,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-12-07 17:30:05,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/6b11b3537/786144ce2a3f4e56bd2c3ba68b699a03/FLAG6d9dff537 [2019-12-07 17:30:05,830 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:30:05,831 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-12-07 17:30:05,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/6b11b3537/786144ce2a3f4e56bd2c3ba68b699a03/FLAG6d9dff537 [2019-12-07 17:30:05,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/6b11b3537/786144ce2a3f4e56bd2c3ba68b699a03 [2019-12-07 17:30:05,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:30:05,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:30:05,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:30:05,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:30:05,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:30:05,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:30:05" (1/1) ... [2019-12-07 17:30:05,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0f4f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:05, skipping insertion in model container [2019-12-07 17:30:05,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:30:05" (1/1) ... [2019-12-07 17:30:05,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:30:05,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:30:06,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:30:06,028 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:30:06,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:30:06,068 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:30:06,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06 WrapperNode [2019-12-07 17:30:06,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:30:06,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:30:06,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:30:06,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:30:06,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:30:06,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:30:06,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:30:06,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:30:06,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... [2019-12-07 17:30:06,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:30:06,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:30:06,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:30:06,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:30:06,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/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 [2019-12-07 17:30:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:30:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 17:30:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:30:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 17:30:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:30:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:30:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:30:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:30:06,435 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:30:06,435 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 17:30:06,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:06 BoogieIcfgContainer [2019-12-07 17:30:06,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:30:06,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:30:06,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:30:06,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:30:06,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:30:05" (1/3) ... [2019-12-07 17:30:06,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3d30f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:30:06, skipping insertion in model container [2019-12-07 17:30:06,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:06" (2/3) ... [2019-12-07 17:30:06,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3d30f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:30:06, skipping insertion in model container [2019-12-07 17:30:06,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:06" (3/3) ... [2019-12-07 17:30:06,440 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2019-12-07 17:30:06,447 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:30:06,451 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:30:06,458 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:30:06,473 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:30:06,473 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:30:06,473 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:30:06,473 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:30:06,473 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:30:06,473 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:30:06,473 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:30:06,473 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:30:06,483 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-12-07 17:30:06,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 17:30:06,487 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:30:06,487 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:06,487 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:30:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:06,491 INFO L82 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2019-12-07 17:30:06,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:06,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608114312] [2019-12-07 17:30:06,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:30:06,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:06,575 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608114312] [2019-12-07 17:30:06,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:30:06,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:30:06,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085708421] [2019-12-07 17:30:06,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:30:06,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:30:06,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:30:06,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:30:06,591 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2019-12-07 17:30:06,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:30:06,606 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2019-12-07 17:30:06,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:30:06,607 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 17:30:06,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:30:06,613 INFO L225 Difference]: With dead ends: 104 [2019-12-07 17:30:06,614 INFO L226 Difference]: Without dead ends: 50 [2019-12-07 17:30:06,616 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:30:06,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-12-07 17:30:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-12-07 17:30:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-12-07 17:30:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2019-12-07 17:30:06,640 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2019-12-07 17:30:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:30:06,640 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2019-12-07 17:30:06,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:30:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2019-12-07 17:30:06,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 17:30:06,641 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:30:06,641 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:06,641 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:30:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:06,641 INFO L82 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2019-12-07 17:30:06,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:06,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932911845] [2019-12-07 17:30:06,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:06,691 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:06,691 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:30:06,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:30:06 BoogieIcfgContainer [2019-12-07 17:30:06,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:30:06,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:30:06,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:30:06,710 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:30:06,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:06" (3/4) ... [2019-12-07 17:30:06,713 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:30:06,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:30:06,714 INFO L168 Benchmark]: Toolchain (without parser) took 867.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -73.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:06,715 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:30:06,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:06,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:30:06,716 INFO L168 Benchmark]: Boogie Preprocessor took 23.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:30:06,716 INFO L168 Benchmark]: RCFGBuilder took 311.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:06,717 INFO L168 Benchmark]: TraceAbstraction took 273.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:06,717 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:30:06,720 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 221.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 311.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 273.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 154]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of someBinaryArithmeticDOUBLEoperation at line 33, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 153. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L149] double x = -0.0; [L20] double z; [L21] __int32_t sign = 0x80000000; [L22] __uint32_t r, t1, s1, ix1, q1; [L23] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (ix0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (ix1) = ew_u.parts.lsw [L32] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L33] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L150] double res = __ieee754_sqrt(x); [L153] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L154] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 73 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 17:30:08,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:30:08,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:30:08,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:30:08,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:30:08,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:30:08,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:30:08,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:30:08,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:30:08,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:30:08,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:30:08,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:30:08,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:30:08,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:30:08,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:30:08,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:30:08,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:30:08,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:30:08,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:30:08,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:30:08,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:30:08,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:30:08,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:30:08,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:30:08,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:30:08,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:30:08,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:30:08,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:30:08,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:30:08,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:30:08,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:30:08,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:30:08,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:30:08,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:30:08,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:30:08,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:30:08,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:30:08,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:30:08,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:30:08,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:30:08,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:30:08,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 17:30:08,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:30:08,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:30:08,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:30:08,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:30:08,178 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:30:08,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:30:08,178 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:30:08,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:30:08,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:30:08,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:30:08,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:30:08,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:30:08,179 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:30:08,179 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:30:08,180 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:30:08,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:30:08,180 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:30:08,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:30:08,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:30:08,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:30:08,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:30:08,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:30:08,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:30:08,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:30:08,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:30:08,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:30:08,181 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 17:30:08,181 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:30:08,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:30:08,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:30:08,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:30:08,182 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/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 -> 788527977e7ebd7aa0a832758f41b65d3cbd270a [2019-12-07 17:30:08,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:30:08,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:30:08,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:30:08,370 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:30:08,370 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:30:08,371 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-12-07 17:30:08,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/bdb1cc872/b9dab23b2d254c378f53cdf625642218/FLAGb360c9018 [2019-12-07 17:30:08,811 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:30:08,811 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-12-07 17:30:08,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/bdb1cc872/b9dab23b2d254c378f53cdf625642218/FLAGb360c9018 [2019-12-07 17:30:09,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/data/bdb1cc872/b9dab23b2d254c378f53cdf625642218 [2019-12-07 17:30:09,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:30:09,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:30:09,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:30:09,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:30:09,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:30:09,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cebc80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09, skipping insertion in model container [2019-12-07 17:30:09,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:30:09,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:30:09,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:30:09,382 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:30:09,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:30:09,461 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:30:09,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09 WrapperNode [2019-12-07 17:30:09,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:30:09,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:30:09,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:30:09,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:30:09,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:30:09,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:30:09,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:30:09,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:30:09,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... [2019-12-07 17:30:09,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:30:09,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:30:09,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:30:09,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:30:09,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/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 [2019-12-07 17:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 17:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 17:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 17:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:30:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 17:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:30:12,073 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:30:12,074 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 17:30:12,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:12 BoogieIcfgContainer [2019-12-07 17:30:12,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:30:12,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:30:12,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:30:12,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:30:12,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:30:09" (1/3) ... [2019-12-07 17:30:12,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d9e1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:30:12, skipping insertion in model container [2019-12-07 17:30:12,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:09" (2/3) ... [2019-12-07 17:30:12,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d9e1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:30:12, skipping insertion in model container [2019-12-07 17:30:12,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:12" (3/3) ... [2019-12-07 17:30:12,081 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2019-12-07 17:30:12,088 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:30:12,093 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:30:12,100 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:30:12,115 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:30:12,115 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:30:12,115 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:30:12,115 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:30:12,115 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:30:12,115 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:30:12,116 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:30:12,116 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:30:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-12-07 17:30:12,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 17:30:12,129 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:30:12,129 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:12,129 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:30:12,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:12,133 INFO L82 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2019-12-07 17:30:12,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:30:12,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405261564] [2019-12-07 17:30:12,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/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 [2019-12-07 17:30:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:30:12,430 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 17:30:12,434 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:30:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:12,444 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:30:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:12,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405261564] [2019-12-07 17:30:12,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:30:12,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 17:30:12,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855154476] [2019-12-07 17:30:12,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:30:12,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:30:12,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:30:12,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:30:12,466 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2019-12-07 17:30:12,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:30:12,482 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2019-12-07 17:30:12,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:30:12,483 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 17:30:12,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:30:12,490 INFO L225 Difference]: With dead ends: 104 [2019-12-07 17:30:12,490 INFO L226 Difference]: Without dead ends: 50 [2019-12-07 17:30:12,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:30:12,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-12-07 17:30:12,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-12-07 17:30:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-12-07 17:30:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2019-12-07 17:30:12,525 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2019-12-07 17:30:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:30:12,525 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2019-12-07 17:30:12,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:30:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2019-12-07 17:30:12,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 17:30:12,526 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:30:12,526 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:12,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:30:12,728 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:30:12,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:12,729 INFO L82 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2019-12-07 17:30:12,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:30:12,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123095903] [2019-12-07 17:30:12,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 17:30:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:30:13,048 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:30:13,050 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:30:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:13,092 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:30:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:13,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123095903] [2019-12-07 17:30:13,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:30:13,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 17:30:13,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581193552] [2019-12-07 17:30:13,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:30:13,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:30:13,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:30:13,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:30:13,126 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand 6 states. [2019-12-07 17:30:14,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:30:14,231 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2019-12-07 17:30:14,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:30:14,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-12-07 17:30:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:30:14,548 INFO L225 Difference]: With dead ends: 59 [2019-12-07 17:30:14,549 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 17:30:14,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:30:14,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 17:30:14,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 17:30:14,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 17:30:14,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-12-07 17:30:14,553 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2019-12-07 17:30:14,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:30:14,553 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-12-07 17:30:14,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:30:14,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-12-07 17:30:14,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 17:30:14,554 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:30:14,554 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:14,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:30:14,755 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:30:14,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:14,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1929218748, now seen corresponding path program 1 times [2019-12-07 17:30:14,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:30:14,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160189536] [2019-12-07 17:30:14,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 17:30:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:30:14,811 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:30:14,812 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:30:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:14,837 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:30:14,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:30:14,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:14,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160189536] [2019-12-07 17:30:14,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:30:14,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-12-07 17:30:14,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110034012] [2019-12-07 17:30:14,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:30:14,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:30:14,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:30:14,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:30:14,861 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 7 states. [2019-12-07 17:30:17,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:30:17,336 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-12-07 17:30:17,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:30:17,336 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-12-07 17:30:17,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:30:17,337 INFO L225 Difference]: With dead ends: 29 [2019-12-07 17:30:17,337 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 17:30:17,338 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:30:17,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 17:30:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2019-12-07 17:30:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 17:30:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-12-07 17:30:17,341 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2019-12-07 17:30:17,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:30:17,341 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-12-07 17:30:17,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:30:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-12-07 17:30:17,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 17:30:17,342 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:30:17,342 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:17,542 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 17:30:17,543 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:30:17,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:17,543 INFO L82 PathProgramCache]: Analyzing trace with hash 239121058, now seen corresponding path program 1 times [2019-12-07 17:30:17,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:30:17,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102209821] [2019-12-07 17:30:17,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 17:30:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:19,186 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 17:30:19,187 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:30:19,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 17:30:19,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:30:19 BoogieIcfgContainer [2019-12-07 17:30:19,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:30:19,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:30:19,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:30:19,429 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:30:19,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:12" (3/4) ... [2019-12-07 17:30:19,431 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 17:30:19,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_253ca344-0cee-440b-8d84-1efc2b239ae3/bin/uautomizer/witness.graphml [2019-12-07 17:30:19,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:30:19,471 INFO L168 Benchmark]: Toolchain (without parser) took 10259.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 952.4 MB in the beginning and 970.1 MB in the end (delta: -17.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:19,471 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:30:19,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:19,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:30:19,472 INFO L168 Benchmark]: Boogie Preprocessor took 27.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:30:19,472 INFO L168 Benchmark]: RCFGBuilder took 2552.04 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: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:19,473 INFO L168 Benchmark]: TraceAbstraction took 7352.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.9 MB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:19,473 INFO L168 Benchmark]: Witness Printer took 41.28 ms. Allocated memory is still 1.2 GB. Free memory was 976.9 MB in the beginning and 970.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:30:19,475 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.64 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. * Boogie Preprocessor took 27.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2552.04 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: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7352.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.9 MB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.28 ms. Allocated memory is still 1.2 GB. Free memory was 976.9 MB in the beginning and 970.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 154]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L149] double x = -0.0; [L20] double z; [L21] __int32_t sign = 0x80000000; [L22] __uint32_t r, t1, s1, ix1, q1; [L23] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (ix0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (ix1) = ew_u.parts.lsw [L32] COND FALSE !((ix0 & 0x7ff00000) == 0x7ff00000) VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L36] COND TRUE ix0 <= 0 VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L37] COND FALSE !(((ix0 & (~sign)) | ix1) == 0) VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L39] COND TRUE ix0 < 0 [L40] return (x - x) / (x - x); VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L150] double res = __ieee754_sqrt(x); [L153] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L153] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L154] __VERIFIER_error() VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Result: UNSAFE, OverallTime: 7.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 95 SDslu, 37 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 3 QuantifiedInterpolants, 1306 SizeOfPredicates, 10 NumberOfNonLiveVariables, 91 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...