./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffb28dc7082592252204f454b15d9526630e5ef2 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffb28dc7082592252204f454b15d9526630e5ef2 ................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-5485861 [2020-10-25 21:48:43,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:48:43,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:48:43,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:48:43,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:48:43,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:48:43,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:48:43,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:48:43,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:48:43,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:48:43,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:48:43,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:48:43,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:48:43,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:48:43,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:48:43,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:48:43,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:48:43,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:48:43,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:48:44,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:48:44,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:48:44,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:48:44,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:48:44,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:48:44,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:48:44,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:48:44,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:48:44,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:48:44,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:48:44,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:48:44,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:48:44,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:48:44,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:48:44,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:48:44,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:48:44,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:48:44,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:48:44,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:48:44,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:48:44,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:48:44,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:48:44,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:48:44,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:48:44,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:48:44,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:48:44,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:48:44,216 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:48:44,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:48:44,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:48:44,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:48:44,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:48:44,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:48:44,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:48:44,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:48:44,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:48:44,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:48:44,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:48:44,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:48:44,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:48:44,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:48:44,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:48:44,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:48:44,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:48:44,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:48:44,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:48:44,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:48:44,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:48:44,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:48:44,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:48:44,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:48:44,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:48:44,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffb28dc7082592252204f454b15d9526630e5ef2 [2020-10-25 21:48:44,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:48:44,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:48:44,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:48:44,962 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:48:44,963 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:48:44,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2020-10-25 21:48:45,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d1b60ad/17b880846c134c5aada4b0699c91e0e5/FLAGd5ad6551f [2020-10-25 21:48:45,703 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:48:45,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2020-10-25 21:48:45,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d1b60ad/17b880846c134c5aada4b0699c91e0e5/FLAGd5ad6551f [2020-10-25 21:48:46,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d1b60ad/17b880846c134c5aada4b0699c91e0e5 [2020-10-25 21:48:46,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:48:46,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:48:46,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:48:46,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:48:46,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:48:46,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132ed8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46, skipping insertion in model container [2020-10-25 21:48:46,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:48:46,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:48:46,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:48:46,649 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:48:46,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:48:46,729 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:48:46,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46 WrapperNode [2020-10-25 21:48:46,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:48:46,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:48:46,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:48:46,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:48:46,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:48:46,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:48:46,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:48:46,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:48:46,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... [2020-10-25 21:48:46,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:48:46,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:48:46,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:48:46,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:48:46,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:48:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-25 21:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:48:48,065 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:48:48,066 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-10-25 21:48:48,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:48:48 BoogieIcfgContainer [2020-10-25 21:48:48,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:48:48,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:48:48,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:48:48,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:48:48,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:48:46" (1/3) ... [2020-10-25 21:48:48,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f283fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:48:48, skipping insertion in model container [2020-10-25 21:48:48,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:46" (2/3) ... [2020-10-25 21:48:48,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f283fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:48:48, skipping insertion in model container [2020-10-25 21:48:48,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:48:48" (3/3) ... [2020-10-25 21:48:48,081 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661b.c [2020-10-25 21:48:48,100 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:48:48,107 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:48:48,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:48:48,172 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:48:48,172 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:48:48,172 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:48:48,172 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:48:48,172 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:48:48,173 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:48:48,173 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:48:48,173 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:48:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-10-25 21:48:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:48:48,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:48:48,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:48:48,217 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:48:48,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:48:48,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2020-10-25 21:48:48,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:48:48,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956279377] [2020-10-25 21:48:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:48:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:48:48,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:48:48,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956279377] [2020-10-25 21:48:48,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:48:48,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:48:48,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964017068] [2020-10-25 21:48:48,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:48:48,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:48:48,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:48:48,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:48:48,477 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-10-25 21:48:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:48:48,511 INFO L93 Difference]: Finished difference Result 238 states and 399 transitions. [2020-10-25 21:48:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:48:48,513 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-25 21:48:48,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:48:48,527 INFO L225 Difference]: With dead ends: 238 [2020-10-25 21:48:48,527 INFO L226 Difference]: Without dead ends: 116 [2020-10-25 21:48:48,531 INFO L677 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 [2020-10-25 21:48:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-25 21:48:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-25 21:48:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-25 21:48:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2020-10-25 21:48:48,584 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2020-10-25 21:48:48,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:48:48,585 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2020-10-25 21:48:48,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:48:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2020-10-25 21:48:48,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-25 21:48:48,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:48:48,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:48:48,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:48:48,587 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:48:48,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:48:48,588 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2020-10-25 21:48:48,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:48:48,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845704534] [2020-10-25 21:48:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:48:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:48:48,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:48:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:48:48,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:48:48,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:48:48,862 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:48:48,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:48:48,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:48:48 BoogieIcfgContainer [2020-10-25 21:48:48,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:48:48,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:48:48,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:48:48,950 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:48:48,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:48:48" (3/4) ... [2020-10-25 21:48:48,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:48:48,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:48:48,959 INFO L168 Benchmark]: Toolchain (without parser) took 2873.84 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 21.5 MB in the beginning and 33.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:48:48,960 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 35.7 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 17.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:48:48,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.78 ms. Allocated memory is still 44.0 MB. Free memory was 29.7 MB in the beginning and 24.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:48:48,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.56 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 21.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:48:48,965 INFO L168 Benchmark]: Boogie Preprocessor took 115.65 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 36.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:48:48,966 INFO L168 Benchmark]: RCFGBuilder took 1105.79 ms. Allocated memory is still 54.5 MB. Free memory was 36.9 MB in the beginning and 26.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:48:48,967 INFO L168 Benchmark]: TraceAbstraction took 877.30 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.8 MB in the beginning and 34.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:48:48,968 INFO L168 Benchmark]: Witness Printer took 6.60 ms. Allocated memory is still 67.1 MB. Free memory was 34.1 MB in the beginning and 33.7 MB in the end (delta: 377.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:48:48,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 35.7 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 17.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 609.78 ms. Allocated memory is still 44.0 MB. Free memory was 29.7 MB in the beginning and 24.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.56 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 21.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.65 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 36.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1105.79 ms. Allocated memory is still 54.5 MB. Free memory was 36.9 MB in the beginning and 26.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 877.30 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.8 MB in the beginning and 34.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. * Witness Printer took 6.60 ms. Allocated memory is still 67.1 MB. Free memory was 34.1 MB in the beginning and 33.7 MB in the end (delta: 377.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 272. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L266] double x = __VERIFIER_nondet_double(); [L267] double y = 0.0; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L269] COND TRUE x > 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L270] double res = __ieee754_atan2(y, x); [L272] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L272] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_0661b.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 170 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=121occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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, ACCELERATED_INTERPOLATION: 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 0.2.0-5485861 [2020-10-25 21:48:51,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:48:51,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:48:51,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:48:51,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:48:51,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:48:51,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:48:51,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:48:51,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:48:51,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:48:51,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:48:51,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:48:51,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:48:51,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:48:51,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:48:51,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:48:51,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:48:51,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:48:51,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:48:52,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:48:52,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:48:52,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:48:52,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:48:52,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:48:52,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:48:52,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:48:52,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:48:52,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:48:52,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:48:52,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:48:52,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:48:52,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:48:52,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:48:52,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:48:52,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:48:52,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:48:52,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:48:52,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:48:52,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:48:52,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:48:52,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:48:52,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:48:52,064 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:48:52,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:48:52,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:48:52,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:48:52,068 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:48:52,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:48:52,068 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:48:52,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:48:52,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:48:52,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:48:52,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:48:52,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:48:52,071 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:48:52,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:48:52,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:48:52,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:48:52,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:48:52,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:48:52,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:48:52,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:48:52,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:48:52,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:48:52,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:48:52,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:48:52,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:48:52,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:48:52,076 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:48:52,076 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:48:52,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:48:52,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:48:52,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:48:52,077 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffb28dc7082592252204f454b15d9526630e5ef2 [2020-10-25 21:48:52,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:48:52,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:48:52,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:48:52,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:48:52,649 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:48:52,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2020-10-25 21:48:52,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b44a702c/2f4f5d0257dc4ba7b12cb777bbdb3951/FLAGeb5d111df [2020-10-25 21:48:53,458 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:48:53,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2020-10-25 21:48:53,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b44a702c/2f4f5d0257dc4ba7b12cb777bbdb3951/FLAGeb5d111df [2020-10-25 21:48:53,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b44a702c/2f4f5d0257dc4ba7b12cb777bbdb3951 [2020-10-25 21:48:53,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:48:53,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:48:53,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:48:53,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:48:53,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:48:53,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:48:53" (1/1) ... [2020-10-25 21:48:53,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d313f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:53, skipping insertion in model container [2020-10-25 21:48:53,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:48:53" (1/1) ... [2020-10-25 21:48:53,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:48:53,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:48:54,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:48:54,207 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:48:54,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:48:54,321 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:48:54,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54 WrapperNode [2020-10-25 21:48:54,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:48:54,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:48:54,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:48:54,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:48:54,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:48:54,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:48:54,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:48:54,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:48:54,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... [2020-10-25 21:48:54,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:48:54,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:48:54,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:48:54,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:48:54,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:48:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-25 21:48:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-25 21:48:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:48:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:48:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-25 21:48:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:48:54,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:48:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:48:54,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:48:54,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:49:35,230 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:49:35,231 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-10-25 21:49:35,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:49:35 BoogieIcfgContainer [2020-10-25 21:49:35,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:49:35,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:49:35,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:49:35,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:49:35,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:48:53" (1/3) ... [2020-10-25 21:49:35,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff3d45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:49:35, skipping insertion in model container [2020-10-25 21:49:35,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:48:54" (2/3) ... [2020-10-25 21:49:35,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff3d45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:49:35, skipping insertion in model container [2020-10-25 21:49:35,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:49:35" (3/3) ... [2020-10-25 21:49:35,244 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661b.c [2020-10-25 21:49:35,257 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:49:35,264 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:49:35,279 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:49:35,310 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:49:35,310 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:49:35,310 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:49:35,311 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:49:35,311 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:49:35,311 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:49:35,311 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:49:35,311 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:49:35,330 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-10-25 21:49:35,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:49:35,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:49:35,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:49:35,339 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:49:35,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:49:35,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2020-10-25 21:49:35,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:49:35,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326773297] [2020-10-25 21:49:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:49:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:49:35,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:49:35,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:49:35,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:49:35,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:49:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:49:35,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326773297] [2020-10-25 21:49:35,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:49:35,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:49:35,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944475044] [2020-10-25 21:49:35,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:49:35,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:49:35,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:49:35,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:49:35,971 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-10-25 21:49:36,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:49:36,004 INFO L93 Difference]: Finished difference Result 238 states and 399 transitions. [2020-10-25 21:49:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:49:36,005 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-25 21:49:36,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:49:36,017 INFO L225 Difference]: With dead ends: 238 [2020-10-25 21:49:36,017 INFO L226 Difference]: Without dead ends: 116 [2020-10-25 21:49:36,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:49:36,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-25 21:49:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-25 21:49:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-25 21:49:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2020-10-25 21:49:36,084 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2020-10-25 21:49:36,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:49:36,085 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2020-10-25 21:49:36,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:49:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2020-10-25 21:49:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-25 21:49:36,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:49:36,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:49:36,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:49:36,300 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:49:36,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:49:36,302 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2020-10-25 21:49:36,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:49:36,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131622583] [2020-10-25 21:49:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-25 21:49:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:49:37,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:49:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:49:37,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:49:38,062 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-25 21:49:38,063 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:49:38,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:49:38,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:49:38 BoogieIcfgContainer [2020-10-25 21:49:38,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:49:38,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:49:38,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:49:38,368 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:49:38,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:49:35" (3/4) ... [2020-10-25 21:49:38,373 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 21:49:38,460 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:49:38,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:49:38,464 INFO L168 Benchmark]: Toolchain (without parser) took 44649.73 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.6 MB in the beginning and 22.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:38,465 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 37.7 MB. Free memory is still 18.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:49:38,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.11 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 23.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:38,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.15 ms. Allocated memory is still 50.3 MB. Free memory was 23.9 MB in the beginning and 33.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:38,469 INFO L168 Benchmark]: Boogie Preprocessor took 144.77 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 29.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:38,470 INFO L168 Benchmark]: RCFGBuilder took 40639.54 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.0 MB in the beginning and 33.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:38,471 INFO L168 Benchmark]: TraceAbstraction took 3131.58 ms. Allocated memory is still 60.8 MB. Free memory was 33.1 MB in the beginning and 27.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:38,474 INFO L168 Benchmark]: Witness Printer took 93.49 ms. Allocated memory is still 60.8 MB. Free memory was 27.4 MB in the beginning and 22.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:38,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 37.7 MB. Free memory is still 18.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 497.11 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 23.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.15 ms. Allocated memory is still 50.3 MB. Free memory was 23.9 MB in the beginning and 33.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 144.77 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 29.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 40639.54 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.0 MB in the beginning and 33.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3131.58 ms. Allocated memory is still 60.8 MB. Free memory was 33.1 MB in the beginning and 27.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 93.49 ms. Allocated memory is still 60.8 MB. Free memory was 27.4 MB in the beginning and 22.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L266] double x = __VERIFIER_nondet_double(); [L267] double y = 0.0; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L269] COND TRUE x > 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L270] double res = __ieee754_atan2(y, x); [L272] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L272] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_0661b.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 170 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred 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, 1.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...