./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0931.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0931.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 0a345343e4b2fce1b8c67d8cf098c119a4547223 .......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0931.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 0a345343e4b2fce1b8c67d8cf098c119a4547223 ..................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-096883e [2020-12-01 23:19:15,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:19:15,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:19:15,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:19:15,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:19:15,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:19:15,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:19:15,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:19:15,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:19:15,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:19:15,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:19:15,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:19:15,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:19:15,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:19:15,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:19:15,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:19:15,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:19:15,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:19:15,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:19:15,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:19:15,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:19:15,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:19:15,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:19:15,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:19:15,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:19:15,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:19:15,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:19:15,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:19:15,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:19:15,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:19:15,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:19:15,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:19:15,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:19:15,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:19:15,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:19:15,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:19:15,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:19:15,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:19:15,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:19:15,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:19:15,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:19:15,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:19:15,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:19:15,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:19:15,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:19:15,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:19:15,525 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:19:15,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:19:15,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:19:15,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:19:15,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:19:15,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:19:15,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:19:15,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:19:15,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:19:15,528 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:19:15,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:19:15,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:19:15,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:19:15,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:19:15,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:19:15,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:19:15,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:19:15,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:15,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:19:15,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:19:15,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:19:15,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:19:15,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:19:15,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:19:15,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:19:15,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a345343e4b2fce1b8c67d8cf098c119a4547223 [2020-12-01 23:19:15,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:19:15,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:19:15,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:19:15,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:19:15,991 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:19:15,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-12-01 23:19:16,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705fba1f5/61774e28a6254c0891d9efcf4148f498/FLAG7cba2df2c [2020-12-01 23:19:16,813 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:19:16,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-12-01 23:19:16,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705fba1f5/61774e28a6254c0891d9efcf4148f498/FLAG7cba2df2c [2020-12-01 23:19:17,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705fba1f5/61774e28a6254c0891d9efcf4148f498 [2020-12-01 23:19:17,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:19:17,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:19:17,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:17,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:19:17,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:19:17,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41042359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17, skipping insertion in model container [2020-12-01 23:19:17,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:19:17,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:19:17,441 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2020-12-01 23:19:17,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:17,455 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:19:17,496 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2020-12-01 23:19:17,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:17,519 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:19:17,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17 WrapperNode [2020-12-01 23:19:17,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:17,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:17,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:19:17,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:19:17,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:17,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:19:17,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:19:17,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:19:17,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (1/1) ... [2020-12-01 23:19:17,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:19:17,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:19:17,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:19:17,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:19:17,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (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 [2020-12-01 23:19:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:19:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:19:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:19:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:19:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:19:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:19:17,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:19:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:19:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:19:18,464 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:19:18,464 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 23:19:18,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:18 BoogieIcfgContainer [2020-12-01 23:19:18,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:19:18,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:19:18,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:19:18,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:19:18,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:17" (1/3) ... [2020-12-01 23:19:18,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@833be82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:18, skipping insertion in model container [2020-12-01 23:19:18,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:17" (2/3) ... [2020-12-01 23:19:18,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@833be82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:18, skipping insertion in model container [2020-12-01 23:19:18,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:18" (3/3) ... [2020-12-01 23:19:18,484 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2020-12-01 23:19:18,501 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:19:18,505 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:19:18,519 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:19:18,562 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:19:18,563 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:19:18,563 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:19:18,563 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:19:18,563 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:19:18,563 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:19:18,563 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:19:18,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:19:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-01 23:19:18,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:19:18,592 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:18,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:18,593 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:18,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:18,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-12-01 23:19:18,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:19:18,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119025671] [2020-12-01 23:19:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:19:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:19:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:19:18,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119025671] [2020-12-01 23:19:18,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:19:18,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:19:18,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494404783] [2020-12-01 23:19:18,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:19:18,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:19:18,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:19:18,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:19:18,816 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-01 23:19:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:19:18,843 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2020-12-01 23:19:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:19:18,845 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-01 23:19:18,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:19:18,864 INFO L225 Difference]: With dead ends: 62 [2020-12-01 23:19:18,864 INFO L226 Difference]: Without dead ends: 29 [2020-12-01 23:19:18,869 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 [2020-12-01 23:19:18,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-01 23:19:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-01 23:19:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-01 23:19:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-12-01 23:19:18,925 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-12-01 23:19:18,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:19:18,926 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-12-01 23:19:18,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:19:18,926 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-12-01 23:19:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:19:18,928 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:18,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:18,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:19:18,929 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:18,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:18,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-12-01 23:19:18,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:19:18,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862964670] [2020-12-01 23:19:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:19:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:19,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:19,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:19,238 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:19:19,238 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:19:19,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:19:19,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:19:19 BoogieIcfgContainer [2020-12-01 23:19:19,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:19:19,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:19:19,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:19:19,287 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:19:19,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:18" (3/4) ... [2020-12-01 23:19:19,292 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:19:19,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:19:19,295 INFO L168 Benchmark]: Toolchain (without parser) took 2142.64 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.0 MB in the beginning and 26.2 MB in the end (delta: -1.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:19,296 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:19,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.13 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 23.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:19,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.94 ms. Allocated memory is still 48.2 MB. Free memory was 23.6 MB in the beginning and 21.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:19,299 INFO L168 Benchmark]: Boogie Preprocessor took 46.47 ms. Allocated memory is still 48.2 MB. Free memory was 21.5 MB in the beginning and 31.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:19,300 INFO L168 Benchmark]: RCFGBuilder took 843.08 ms. Allocated memory is still 48.2 MB. Free memory was 31.3 MB in the beginning and 19.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:19,302 INFO L168 Benchmark]: TraceAbstraction took 815.75 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 18.7 MB in the beginning and 26.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:19,303 INFO L168 Benchmark]: Witness Printer took 5.88 ms. Allocated memory is still 58.7 MB. Free memory is still 26.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:19,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.13 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 23.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.94 ms. Allocated memory is still 48.2 MB. Free memory was 23.6 MB in the beginning and 21.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.47 ms. Allocated memory is still 48.2 MB. Free memory was 21.5 MB in the beginning and 31.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 843.08 ms. Allocated memory is still 48.2 MB. Free memory was 31.3 MB in the beginning and 19.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 815.75 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 18.7 MB in the beginning and 26.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.88 ms. Allocated memory is still 58.7 MB. Free memory is still 26.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 139]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L134] double x = 1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 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=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-096883e [2020-12-01 23:19:21,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:19:21,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:19:21,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:19:21,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:19:22,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:19:22,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:19:22,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:19:22,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:19:22,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:19:22,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:19:22,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:19:22,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:19:22,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:19:22,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:19:22,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:19:22,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:19:22,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:19:22,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:19:22,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:19:22,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:19:22,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:19:22,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:19:22,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:19:22,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:19:22,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:19:22,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:19:22,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:19:22,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:19:22,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:19:22,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:19:22,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:19:22,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:19:22,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:19:22,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:19:22,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:19:22,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:19:22,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:19:22,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:19:22,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:19:22,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:19:22,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:19:22,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:19:22,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:19:22,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:19:22,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:19:22,157 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:19:22,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:19:22,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:19:22,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:19:22,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:19:22,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:19:22,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:19:22,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:19:22,159 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:19:22,159 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:19:22,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:19:22,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:19:22,159 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:19:22,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:19:22,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:19:22,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:19:22,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:19:22,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:19:22,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:22,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:19:22,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:19:22,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:19:22,161 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:19:22,162 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:19:22,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:19:22,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:19:22,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:19:22,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a345343e4b2fce1b8c67d8cf098c119a4547223 [2020-12-01 23:19:22,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:19:22,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:19:22,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:19:22,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:19:22,577 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:19:22,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-12-01 23:19:22,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c27d248f6/c077402a94fe4b6b95643a2d982884f4/FLAG7f5d46bba [2020-12-01 23:19:23,383 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:19:23,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-12-01 23:19:23,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c27d248f6/c077402a94fe4b6b95643a2d982884f4/FLAG7f5d46bba [2020-12-01 23:19:23,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c27d248f6/c077402a94fe4b6b95643a2d982884f4 [2020-12-01 23:19:23,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:19:23,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:19:23,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:23,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:19:23,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:19:23,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:23" (1/1) ... [2020-12-01 23:19:23,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d5b7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:23, skipping insertion in model container [2020-12-01 23:19:23,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:23" (1/1) ... [2020-12-01 23:19:23,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:19:23,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:19:24,034 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2020-12-01 23:19:24,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:24,058 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:19:24,105 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2020-12-01 23:19:24,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:24,152 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:19:24,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24 WrapperNode [2020-12-01 23:19:24,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:24,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:24,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:19:24,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:19:24,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:24,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:19:24,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:19:24,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:19:24,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (1/1) ... [2020-12-01 23:19:24,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:19:24,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:19:24,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:19:24,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:19:24,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (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 [2020-12-01 23:19:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:19:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:19:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:19:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:19:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:19:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:19:24,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:19:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:19:24,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:19:51,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:19:51,175 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 23:19:51,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:51 BoogieIcfgContainer [2020-12-01 23:19:51,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:19:51,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:19:51,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:19:51,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:19:51,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:23" (1/3) ... [2020-12-01 23:19:51,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7db1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:51, skipping insertion in model container [2020-12-01 23:19:51,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:24" (2/3) ... [2020-12-01 23:19:51,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7db1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:51, skipping insertion in model container [2020-12-01 23:19:51,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:51" (3/3) ... [2020-12-01 23:19:51,187 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2020-12-01 23:19:51,202 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:19:51,206 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:19:51,218 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:19:51,243 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:19:51,244 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:19:51,244 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:19:51,244 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:19:51,244 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:19:51,245 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:19:51,245 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:19:51,245 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:19:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-01 23:19:51,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:19:51,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:51,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:51,271 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:51,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:51,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-12-01 23:19:51,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:19:51,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89564110] [2020-12-01 23:19:51,291 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 [2020-12-01 23:19:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:19:52,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:19:52,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:19:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:19:52,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:19:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:19:52,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89564110] [2020-12-01 23:19:52,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:19:52,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:19:52,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592976952] [2020-12-01 23:19:52,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:19:52,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:19:52,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:19:52,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:19:52,394 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-01 23:19:52,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:19:52,416 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2020-12-01 23:19:52,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:19:52,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-01 23:19:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:19:52,427 INFO L225 Difference]: With dead ends: 62 [2020-12-01 23:19:52,428 INFO L226 Difference]: Without dead ends: 29 [2020-12-01 23:19:52,431 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 [2020-12-01 23:19:52,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-01 23:19:52,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-01 23:19:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-01 23:19:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-12-01 23:19:52,467 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-12-01 23:19:52,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:19:52,467 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-12-01 23:19:52,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:19:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-12-01 23:19:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:19:52,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:52,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:52,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:19:52,682 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:52,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:52,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-12-01 23:19:52,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:19:52,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022470482] [2020-12-01 23:19:52,686 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 [2020-12-01 23:19:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:19:53,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 23:19:53,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:19:54,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:19:54,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:19:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:19:54,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022470482] [2020-12-01 23:19:54,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:19:54,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-01 23:19:54,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322344993] [2020-12-01 23:19:54,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 23:19:54,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:19:54,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 23:19:54,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 23:19:54,525 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 6 states. [2020-12-01 23:19:54,843 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-01 23:19:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:19:55,004 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2020-12-01 23:19:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 23:19:55,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-01 23:19:55,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:19:55,012 INFO L225 Difference]: With dead ends: 38 [2020-12-01 23:19:55,012 INFO L226 Difference]: Without dead ends: 15 [2020-12-01 23:19:55,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 23:19:55,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-01 23:19:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-01 23:19:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-01 23:19:55,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-12-01 23:19:55,017 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-12-01 23:19:55,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:19:55,018 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-12-01 23:19:55,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 23:19:55,018 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-12-01 23:19:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:19:55,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:55,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:55,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:19:55,230 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:55,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:55,231 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2020-12-01 23:19:55,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:19:55,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869367442] [2020-12-01 23:19:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 23:19:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:55,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:55,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:55,852 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:19:55,852 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:19:56,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:19:56,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:19:56 BoogieIcfgContainer [2020-12-01 23:19:56,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:19:56,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:19:56,115 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:19:56,116 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:19:56,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:51" (3/4) ... [2020-12-01 23:19:56,119 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:19:56,228 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:19:56,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:19:56,230 INFO L168 Benchmark]: Toolchain (without parser) took 32500.43 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.2 MB in the beginning and 30.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:56,232 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 41.9 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:56,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.18 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 26.3 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:56,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.30 ms. Allocated memory is still 41.9 MB. Free memory was 26.3 MB in the beginning and 24.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:56,237 INFO L168 Benchmark]: Boogie Preprocessor took 44.71 ms. Allocated memory is still 41.9 MB. Free memory was 24.2 MB in the beginning and 22.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:56,240 INFO L168 Benchmark]: RCFGBuilder took 26910.38 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 22.1 MB in the beginning and 25.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:56,243 INFO L168 Benchmark]: TraceAbstraction took 4935.41 ms. Allocated memory is still 50.3 MB. Free memory was 25.1 MB in the beginning and 19.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:56,243 INFO L168 Benchmark]: Witness Printer took 113.96 ms. Allocated memory is still 50.3 MB. Free memory was 19.2 MB in the beginning and 30.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:56,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 41.9 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.18 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 26.3 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.30 ms. Allocated memory is still 41.9 MB. Free memory was 26.3 MB in the beginning and 24.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.71 ms. Allocated memory is still 41.9 MB. Free memory was 24.2 MB in the beginning and 22.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 26910.38 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 22.1 MB in the beginning and 25.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4935.41 ms. Allocated memory is still 50.3 MB. Free memory was 25.1 MB in the beginning and 19.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 113.96 ms. Allocated memory is still 50.3 MB. Free memory was 19.2 MB in the beginning and 30.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 139]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L134] double x = 1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L60] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L73] COND TRUE hx >= 0x7ff00000 [L74] return x + x; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 33 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 5 QuantifiedInterpolants, 1750 SizeOfPredicates, 7 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...