./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0661a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cbb939d5 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0661a.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 b824bf566437e177299c8e8b970f777a8a8d288a ...................................................................................................................................................................................................................................................................................................................................... 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0661a.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 b824bf566437e177299c8e8b970f777a8a8d288a ................................................................................................................................................................................................................................................................................................................................................... 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-cbb939d [2020-11-23 16:25:53,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:25:53,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:25:53,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:25:53,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:25:53,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:25:53,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:25:53,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:25:53,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:25:53,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:25:53,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:25:53,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:25:53,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:25:53,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:25:53,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:25:53,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:25:53,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:25:53,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:25:53,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:25:53,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:25:53,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:25:53,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:25:53,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:25:53,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:25:53,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:25:53,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:25:53,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:25:53,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:25:53,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:25:53,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:25:53,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:25:53,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:25:53,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:25:53,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:25:53,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:25:53,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:25:53,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:25:53,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:25:53,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:25:53,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:25:53,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:25:53,270 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-23 16:25:53,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:25:53,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:25:53,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:25:53,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:25:53,335 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:25:53,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:25:53,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:25:53,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-23 16:25:53,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:25:53,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:25:53,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:25:53,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:25:53,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:25:53,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:25:53,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:25:53,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:25:53,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:25:53,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:25:53,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:25:53,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:25:53,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:25:53,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:25:53,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:25:53,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:25:53,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:25:53,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-23 16:25:53,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-23 16:25:53,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:25:53,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:25:53,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b824bf566437e177299c8e8b970f777a8a8d288a [2020-11-23 16:25:53,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:25:53,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:25:53,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:25:53,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:25:53,981 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:25:53,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0661a.c [2020-11-23 16:25:54,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5ff64b8/0e0c9ac100d649239f95dd2c75926602/FLAG9ac3a2180 [2020-11-23 16:25:55,403 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:25:55,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0661a.c [2020-11-23 16:25:55,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5ff64b8/0e0c9ac100d649239f95dd2c75926602/FLAG9ac3a2180 [2020-11-23 16:25:55,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5ff64b8/0e0c9ac100d649239f95dd2c75926602 [2020-11-23 16:25:55,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:25:55,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:25:55,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:25:55,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:25:55,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:25:55,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:25:55" (1/1) ... [2020-11-23 16:25:55,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54828150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:55, skipping insertion in model container [2020-11-23 16:25:55,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:25:55" (1/1) ... [2020-11-23 16:25:55,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:25:55,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:25:56,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:25:56,135 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:25:56,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:25:56,508 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:25:56,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56 WrapperNode [2020-11-23 16:25:56,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:25:56,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:25:56,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:25:56,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:25:56,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:25:56,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:25:56,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:25:56,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:25:56,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (1/1) ... [2020-11-23 16:25:56,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:25:56,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:25:56,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:25:56,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:25:56,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (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 [2020-11-23 16:25:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-23 16:25:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:25:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-23 16:25:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-23 16:25:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-23 16:25:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:25:57,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:25:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-23 16:25:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-23 16:25:57,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:25:58,976 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:25:58,976 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-11-23 16:25:58,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:25:58 BoogieIcfgContainer [2020-11-23 16:25:58,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:25:58,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:25:58,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:25:58,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:25:58,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:25:55" (1/3) ... [2020-11-23 16:25:58,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7041b898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:25:58, skipping insertion in model container [2020-11-23 16:25:58,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:25:56" (2/3) ... [2020-11-23 16:25:59,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7041b898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:25:58, skipping insertion in model container [2020-11-23 16:25:59,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:25:58" (3/3) ... [2020-11-23 16:25:59,005 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2020-11-23 16:25:59,039 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:25:59,060 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:25:59,094 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:25:59,197 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:25:59,197 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:25:59,198 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:25:59,198 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:25:59,198 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:25:59,198 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:25:59,198 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:25:59,198 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:25:59,252 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-11-23 16:25:59,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-23 16:25:59,289 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:25:59,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:25:59,293 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:25:59,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:25:59,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2020-11-23 16:25:59,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:25:59,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680999784] [2020-11-23 16:25:59,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:25:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:25:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:25:59,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680999784] [2020-11-23 16:25:59,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:25:59,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-23 16:25:59,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187785451] [2020-11-23 16:25:59,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:25:59,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-23 16:25:59,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:25:59,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:25:59,818 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-11-23 16:25:59,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:25:59,960 INFO L93 Difference]: Finished difference Result 238 states and 399 transitions. [2020-11-23 16:25:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:25:59,964 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-23 16:25:59,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:26:00,027 INFO L225 Difference]: With dead ends: 238 [2020-11-23 16:26:00,031 INFO L226 Difference]: Without dead ends: 116 [2020-11-23 16:26:00,053 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 [2020-11-23 16:26:00,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-23 16:26:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-23 16:26:00,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-23 16:26:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2020-11-23 16:26:00,219 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2020-11-23 16:26:00,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:26:00,222 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2020-11-23 16:26:00,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:26:00,222 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2020-11-23 16:26:00,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-23 16:26:00,226 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:26:00,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:26:00,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-23 16:26:00,229 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:26:00,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:26:00,236 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2020-11-23 16:26:00,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:26:00,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077954601] [2020-11-23 16:26:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:26:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:26:00,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:26:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:26:00,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:26:00,740 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-23 16:26:00,742 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:26:00,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-23 16:26:00,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:26:00 BoogieIcfgContainer [2020-11-23 16:26:00,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:26:00,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:26:00,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:26:00,920 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:26:00,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:25:58" (3/4) ... [2020-11-23 16:26:00,935 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-23 16:26:00,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:26:00,944 INFO L168 Benchmark]: Toolchain (without parser) took 5470.66 ms. Allocated memory was 41.9 MB in the beginning and 62.9 MB in the end (delta: 21.0 MB). Free memory was 19.4 MB in the beginning and 28.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:00,947 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:26:00,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1033.12 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.7 MB in the beginning and 34.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:00,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.55 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 31.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:00,959 INFO L168 Benchmark]: Boogie Preprocessor took 173.19 ms. Allocated memory is still 52.4 MB. Free memory was 31.1 MB in the beginning and 27.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:00,962 INFO L168 Benchmark]: RCFGBuilder took 2105.53 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 30.5 MB in the end (delta: -2.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:00,968 INFO L168 Benchmark]: TraceAbstraction took 1930.01 ms. Allocated memory is still 62.9 MB. Free memory was 30.2 MB in the beginning and 29.2 MB in the end (delta: 927.1 kB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:00,975 INFO L168 Benchmark]: Witness Printer took 17.66 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 28.9 MB in the end (delta: 367.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:26:01,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1033.12 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.7 MB in the beginning and 34.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 184.55 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 31.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 173.19 ms. Allocated memory is still 52.4 MB. Free memory was 31.1 MB in the beginning and 27.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2105.53 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 30.5 MB in the end (delta: -2.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1930.01 ms. Allocated memory is still 62.9 MB. Free memory was 30.2 MB in the beginning and 29.2 MB in the end (delta: 927.1 kB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. * Witness Printer took 17.66 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 28.9 MB in the end (delta: 367.5 kB). There was no memory consumed. 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 267, 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) == 1 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) == 1) [L3] __assert_fail("0", "double_req_bl_0661a.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: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s 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-cbb939d [2020-11-23 16:26:04,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:26:04,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:26:04,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:26:04,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:26:04,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:26:04,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:26:04,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:26:04,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:26:04,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:26:04,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:26:04,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:26:04,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:26:04,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:26:04,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:26:04,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:26:04,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:26:04,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:26:04,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:26:04,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:26:04,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:26:04,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:26:04,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:26:04,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:26:04,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:26:04,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:26:04,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:26:04,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:26:04,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:26:04,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:26:04,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:26:04,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:26:04,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:26:04,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:26:04,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:26:04,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:26:04,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:26:04,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:26:04,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:26:04,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:26:04,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:26:04,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-23 16:26:04,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:26:04,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:26:04,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:26:04,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:26:04,457 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:26:04,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:26:04,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:26:04,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:26:04,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:26:04,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:26:04,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:26:04,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:26:04,460 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-23 16:26:04,461 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-23 16:26:04,461 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:26:04,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:26:04,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:26:04,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:26:04,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:26:04,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:26:04,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:26:04,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:26:04,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:26:04,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:26:04,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:26:04,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:26:04,465 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-23 16:26:04,466 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-23 16:26:04,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:26:04,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:26:04,466 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-23 16:26:04,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b824bf566437e177299c8e8b970f777a8a8d288a [2020-11-23 16:26:05,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:26:05,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:26:05,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:26:05,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:26:05,333 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:26:05,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0661a.c [2020-11-23 16:26:05,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9a68a73/82109b54d28f4fc28134d85afae05dd9/FLAG1b9a07621 [2020-11-23 16:26:06,924 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:26:06,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0661a.c [2020-11-23 16:26:06,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9a68a73/82109b54d28f4fc28134d85afae05dd9/FLAG1b9a07621 [2020-11-23 16:26:07,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9a68a73/82109b54d28f4fc28134d85afae05dd9 [2020-11-23 16:26:07,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:26:07,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:26:07,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:26:07,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:26:07,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:26:07,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:26:07" (1/1) ... [2020-11-23 16:26:07,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da24089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:07, skipping insertion in model container [2020-11-23 16:26:07,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:26:07" (1/1) ... [2020-11-23 16:26:07,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:26:07,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:26:07,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:26:07,954 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:26:08,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:26:08,234 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:26:08,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08 WrapperNode [2020-11-23 16:26:08,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:26:08,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:26:08,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:26:08,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:26:08,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:26:08,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:26:08,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:26:08,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:26:08,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (1/1) ... [2020-11-23 16:26:08,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:26:08,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:26:08,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:26:08,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:26:08,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (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 [2020-11-23 16:26:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-23 16:26:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-23 16:26:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-23 16:26:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:26:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-23 16:26:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-23 16:26:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:26:08,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:26:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-23 16:26:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:26:54,124 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:26:54,125 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-11-23 16:26:54,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:26:54 BoogieIcfgContainer [2020-11-23 16:26:54,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:26:54,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:26:54,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:26:54,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:26:54,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:26:07" (1/3) ... [2020-11-23 16:26:54,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f306aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:26:54, skipping insertion in model container [2020-11-23 16:26:54,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:26:08" (2/3) ... [2020-11-23 16:26:54,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f306aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:26:54, skipping insertion in model container [2020-11-23 16:26:54,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:26:54" (3/3) ... [2020-11-23 16:26:54,146 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2020-11-23 16:26:54,178 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:26:54,188 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:26:54,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:26:54,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:26:54,270 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:26:54,270 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:26:54,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:26:54,271 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:26:54,271 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:26:54,271 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:26:54,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:26:54,300 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-11-23 16:26:54,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-23 16:26:54,314 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:26:54,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:26:54,317 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:26:54,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:26:54,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2020-11-23 16:26:54,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:26:54,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167630404] [2020-11-23 16:26:54,365 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 [2020-11-23 16:26:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:26:55,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-23 16:26:55,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:26:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:26:55,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:26:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:26:55,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167630404] [2020-11-23 16:26:55,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:26:55,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-23 16:26:55,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231429168] [2020-11-23 16:26:55,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:26:55,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:26:55,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:26:55,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:26:55,385 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-11-23 16:26:55,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:26:55,456 INFO L93 Difference]: Finished difference Result 238 states and 399 transitions. [2020-11-23 16:26:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:26:55,460 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-23 16:26:55,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:26:55,490 INFO L225 Difference]: With dead ends: 238 [2020-11-23 16:26:55,491 INFO L226 Difference]: Without dead ends: 116 [2020-11-23 16:26:55,500 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 [2020-11-23 16:26:55,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-23 16:26:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-23 16:26:55,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-23 16:26:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2020-11-23 16:26:55,604 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2020-11-23 16:26:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:26:55,606 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2020-11-23 16:26:55,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:26:55,607 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2020-11-23 16:26:55,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-23 16:26:55,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:26:55,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:26:55,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-23 16:26:55,824 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:26:55,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:26:55,828 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2020-11-23 16:26:55,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:26:55,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208031073] [2020-11-23 16:26:55,830 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 [2020-11-23 16:26:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:26:57,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:26:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:26:58,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:26:58,794 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-23 16:26:58,795 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:26:58,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-23 16:26:59,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:26:59 BoogieIcfgContainer [2020-11-23 16:26:59,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:26:59,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:26:59,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:26:59,090 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:26:59,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:26:54" (3/4) ... [2020-11-23 16:26:59,092 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-23 16:26:59,215 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-23 16:26:59,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:26:59,225 INFO L168 Benchmark]: Toolchain (without parser) took 52177.47 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 35.0 MB in the beginning and 25.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:59,226 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 41.9 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:26:59,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1179.66 ms. Allocated memory is still 58.7 MB. Free memory was 34.5 MB in the beginning and 32.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:59,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.90 ms. Allocated memory is still 58.7 MB. Free memory was 32.7 MB in the beginning and 29.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:59,228 INFO L168 Benchmark]: Boogie Preprocessor took 245.59 ms. Allocated memory is still 58.7 MB. Free memory was 29.0 MB in the beginning and 39.7 MB in the end (delta: -10.7 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:59,229 INFO L168 Benchmark]: RCFGBuilder took 45502.25 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 39.7 MB in the beginning and 51.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:59,229 INFO L168 Benchmark]: TraceAbstraction took 4956.66 ms. Allocated memory is still 81.8 MB. Free memory was 50.8 MB in the beginning and 30.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:59,230 INFO L168 Benchmark]: Witness Printer took 126.91 ms. Allocated memory is still 81.8 MB. Free memory was 30.0 MB in the beginning and 25.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:26:59,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 41.9 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1179.66 ms. Allocated memory is still 58.7 MB. Free memory was 34.5 MB in the beginning and 32.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.90 ms. Allocated memory is still 58.7 MB. Free memory was 32.7 MB in the beginning and 29.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 245.59 ms. Allocated memory is still 58.7 MB. Free memory was 29.0 MB in the beginning and 39.7 MB in the end (delta: -10.7 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 45502.25 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 39.7 MB in the beginning and 51.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4956.66 ms. Allocated memory is still 81.8 MB. Free memory was 50.8 MB in the beginning and 30.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * Witness Printer took 126.91 ms. Allocated memory is still 81.8 MB. Free memory was 30.0 MB in the beginning and 25.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 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) == 1 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) == 1) [L3] __assert_fail("0", "double_req_bl_0661a.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: 4.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, 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: 0.1s SsaConstructionTime, 2.1s 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...