./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 a4ecdabc 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-a4ecdab [2020-10-24 23:15:03,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:15:03,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:15:03,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:15:03,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:15:03,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:15:03,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:15:03,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:15:03,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:15:03,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:15:03,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:15:03,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:15:03,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:15:03,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:15:03,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:15:03,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:15:03,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:15:03,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:15:03,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:15:03,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:15:03,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:15:03,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:15:03,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:15:03,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:15:03,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:15:03,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:15:03,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:15:03,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:15:03,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:15:03,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:15:03,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:15:03,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:15:03,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:15:03,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:15:03,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:15:03,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:15:03,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:15:03,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:15:03,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:15:03,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:15:03,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:15:03,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:15:03,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:15:03,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:15:03,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:15:03,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:15:03,438 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:15:03,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:15:03,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:15:03,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:15:03,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:15:03,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:15:03,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:15:03,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:15:03,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:15:03,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:15:03,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:15:03,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:15:03,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:15:03,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:15:03,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:15:03,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:15:03,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:15:03,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:03,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:15:03,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:15:03,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:15:03,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:15:03,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:15:03,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:15:03,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:15:03,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a345343e4b2fce1b8c67d8cf098c119a4547223 [2020-10-24 23:15:03,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:15:03,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:15:03,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:15:03,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:15:03,898 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:15:03,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-10-24 23:15:03,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1994be1/be5853754b8f4ee9845ebd8faa0df18d/FLAG8e70398cf [2020-10-24 23:15:04,603 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:15:04,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-10-24 23:15:04,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1994be1/be5853754b8f4ee9845ebd8faa0df18d/FLAG8e70398cf [2020-10-24 23:15:04,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1994be1/be5853754b8f4ee9845ebd8faa0df18d [2020-10-24 23:15:04,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:15:04,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:15:04,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:04,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:15:04,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:15:04,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:04" (1/1) ... [2020-10-24 23:15:04,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c50f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:04, skipping insertion in model container [2020-10-24 23:15:04,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:04" (1/1) ... [2020-10-24 23:15:04,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:15:04,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:15:05,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:05,212 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:15:05,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:05,290 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:15:05,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05 WrapperNode [2020-10-24 23:15:05,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:05,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:05,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:15:05,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:15:05,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:05,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:15:05,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:15:05,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:15:05,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... [2020-10-24 23:15:05,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:15:05,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:15:05,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:15:05,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:15:05,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:15:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:15:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:15:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:15:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:15:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:15:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:15:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:15:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:15:05,990 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:15:05,991 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 23:15:05,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:05 BoogieIcfgContainer [2020-10-24 23:15:05,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:15:05,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:15:05,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:15:05,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:15:05,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:15:04" (1/3) ... [2020-10-24 23:15:06,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3360b50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:06, skipping insertion in model container [2020-10-24 23:15:06,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:05" (2/3) ... [2020-10-24 23:15:06,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3360b50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:06, skipping insertion in model container [2020-10-24 23:15:06,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:05" (3/3) ... [2020-10-24 23:15:06,004 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2020-10-24 23:15:06,017 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:15:06,023 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:15:06,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:15:06,072 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:15:06,073 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:15:06,073 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:15:06,073 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:15:06,074 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:15:06,074 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:15:06,074 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:15:06,074 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:15:06,090 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:15:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:15:06,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:06,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:06,100 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:06,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:06,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-10-24 23:15:06,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:15:06,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825450963] [2020-10-24 23:15:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:15:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:06,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825450963] [2020-10-24 23:15:06,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:06,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:15:06,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929298354] [2020-10-24 23:15:06,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:15:06,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:15:06,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:15:06,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:15:06,330 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:15:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:06,351 INFO L93 Difference]: Finished difference Result 63 states and 101 transitions. [2020-10-24 23:15:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:15:06,353 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-24 23:15:06,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:06,364 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:15:06,365 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:15:06,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:15:06,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:15:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:15:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:15:06,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-10-24 23:15:06,408 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-10-24 23:15:06,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:06,409 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-10-24 23:15:06,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:15:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-10-24 23:15:06,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-24 23:15:06,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:06,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:06,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:15:06,411 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:06,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-10-24 23:15:06,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:15:06,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061812042] [2020-10-24 23:15:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:15:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:15:06,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:15:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:15:06,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:15:06,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:15:06,634 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:15:06,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:15:06,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:15:06 BoogieIcfgContainer [2020-10-24 23:15:06,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:15:06,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:15:06,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:15:06,725 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:15:06,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:05" (3/4) ... [2020-10-24 23:15:06,729 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:15:06,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:15:06,735 INFO L168 Benchmark]: Toolchain (without parser) took 1818.57 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 39.3 MB in the beginning and 64.3 MB in the end (delta: -24.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:15:06,736 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.8 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:15:06,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.00 ms. Allocated memory is still 62.9 MB. Free memory was 38.7 MB in the beginning and 41.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:06,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.29 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 39.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:06,740 INFO L168 Benchmark]: Boogie Preprocessor took 41.42 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 37.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:15:06,741 INFO L168 Benchmark]: RCFGBuilder took 598.82 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 31.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:06,742 INFO L168 Benchmark]: TraceAbstraction took 727.03 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 31.3 MB in the beginning and 64.8 MB in the end (delta: -33.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:06,743 INFO L168 Benchmark]: Witness Printer took 5.72 ms. Allocated memory is still 83.9 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:15:06,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.8 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.00 ms. Allocated memory is still 62.9 MB. Free memory was 38.7 MB in the beginning and 41.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.29 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 39.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.42 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 37.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 598.82 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 31.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 727.03 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 31.3 MB in the beginning and 64.8 MB in the end (delta: -33.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.72 ms. Allocated memory is still 83.9 MB. Free memory is still 64.3 MB. 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 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) [L3] __assert_fail("0", "double_req_bl_0931.c", 3, "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, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, 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=33occurred 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-a4ecdab [2020-10-24 23:15:09,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:15:09,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:15:09,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:15:09,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:15:09,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:15:09,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:15:09,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:15:09,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:15:09,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:15:09,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:15:09,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:15:09,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:15:09,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:15:09,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:15:09,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:15:09,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:15:09,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:15:09,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:15:09,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:15:09,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:15:09,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:15:09,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:15:09,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:15:09,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:15:09,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:15:09,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:15:09,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:15:09,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:15:09,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:15:09,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:15:09,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:15:09,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:15:09,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:15:09,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:15:09,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:15:09,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:15:09,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:15:09,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:15:09,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:15:09,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:15:09,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:15:09,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:15:09,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:15:09,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:15:09,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:15:09,296 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:15:09,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:15:09,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:15:09,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:15:09,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:15:09,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:15:09,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:15:09,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:15:09,299 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:15:09,299 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:15:09,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:15:09,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:15:09,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:15:09,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:15:09,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:15:09,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:15:09,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:15:09,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:15:09,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:09,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:15:09,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:15:09,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:15:09,303 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:15:09,303 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:15:09,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:15:09,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:15:09,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:15:09,304 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a345343e4b2fce1b8c67d8cf098c119a4547223 [2020-10-24 23:15:09,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:15:09,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:15:09,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:15:09,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:15:09,751 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:15:09,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-10-24 23:15:09,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3fcef40/541da0b368ef4b90a5957a3328211022/FLAGdecd500fd [2020-10-24 23:15:10,582 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:15:10,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-10-24 23:15:10,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3fcef40/541da0b368ef4b90a5957a3328211022/FLAGdecd500fd [2020-10-24 23:15:10,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3fcef40/541da0b368ef4b90a5957a3328211022 [2020-10-24 23:15:10,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:15:10,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:15:10,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:10,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:15:10,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:15:10,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:10" (1/1) ... [2020-10-24 23:15:10,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c05ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:10, skipping insertion in model container [2020-10-24 23:15:10,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:10" (1/1) ... [2020-10-24 23:15:10,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:15:10,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:15:11,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:11,239 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:15:11,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:11,355 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:15:11,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11 WrapperNode [2020-10-24 23:15:11,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:11,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:11,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:15:11,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:15:11,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:11,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:15:11,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:15:11,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:15:11,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:15:11,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:15:11,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:15:11,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:15:11,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:15:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:15:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:15:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:15:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:15:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:15:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:15:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:15:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:15:35,142 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:15:35,143 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 23:15:35,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:35 BoogieIcfgContainer [2020-10-24 23:15:35,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:15:35,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:15:35,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:15:35,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:15:35,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:15:10" (1/3) ... [2020-10-24 23:15:35,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d7a5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:35, skipping insertion in model container [2020-10-24 23:15:35,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (2/3) ... [2020-10-24 23:15:35,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d7a5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:35, skipping insertion in model container [2020-10-24 23:15:35,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:35" (3/3) ... [2020-10-24 23:15:35,157 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2020-10-24 23:15:35,169 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:15:35,174 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:15:35,188 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:15:35,216 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:15:35,217 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:15:35,217 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:15:35,217 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:15:35,217 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:15:35,218 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:15:35,218 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:15:35,218 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:15:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:15:35,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:15:35,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:35,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:35,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:35,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:35,247 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-10-24 23:15:35,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:15:35,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372285929] [2020-10-24 23:15:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 23:15:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:36,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:15:36,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:15:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:36,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:15:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:36,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372285929] [2020-10-24 23:15:36,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:36,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:15:36,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764098338] [2020-10-24 23:15:36,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:15:36,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:15:36,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:15:36,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:15:36,409 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:15:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:36,438 INFO L93 Difference]: Finished difference Result 63 states and 101 transitions. [2020-10-24 23:15:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:15:36,439 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-24 23:15:36,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:36,457 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:15:36,458 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:15:36,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:15:36,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:15:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:15:36,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:15:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-10-24 23:15:36,508 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-10-24 23:15:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:36,508 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-10-24 23:15:36,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:15:36,508 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-10-24 23:15:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-24 23:15:36,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:36,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:36,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:15:36,727 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:36,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:36,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-10-24 23:15:36,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:15:36,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792988865] [2020-10-24 23:15:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 23:15:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:37,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:15:37,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:15:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:37,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:15:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:37,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792988865] [2020-10-24 23:15:37,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:37,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 23:15:37,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962617100] [2020-10-24 23:15:37,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:15:37,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:15:37,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:15:37,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:15:37,977 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 6 states. [2020-10-24 23:15:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:38,150 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2020-10-24 23:15:38,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:15:38,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-24 23:15:38,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:38,159 INFO L225 Difference]: With dead ends: 38 [2020-10-24 23:15:38,159 INFO L226 Difference]: Without dead ends: 15 [2020-10-24 23:15:38,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 23:15:38,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-24 23:15:38,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-24 23:15:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-24 23:15:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-10-24 23:15:38,165 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-10-24 23:15:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:38,166 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-10-24 23:15:38,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:15:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-10-24 23:15:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-24 23:15:38,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:38,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:38,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:15:38,372 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:38,374 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2020-10-24 23:15:38,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:15:38,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309676425] [2020-10-24 23:15:38,375 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 [2020-10-24 23:15:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:15:38,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:15:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:15:38,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:15:39,085 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 23:15:39,085 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:15:39,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:15:39,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:15:39 BoogieIcfgContainer [2020-10-24 23:15:39,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:15:39,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:15:39,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:15:39,365 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:15:39,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:35" (3/4) ... [2020-10-24 23:15:39,368 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 23:15:39,439 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:15:39,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:15:39,442 INFO L168 Benchmark]: Toolchain (without parser) took 28534.04 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 26.5 MB in the beginning and 34.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:39,443 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory is still 33.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:15:39,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.47 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 26.0 MB in the end (delta: -192.5 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:39,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.09 ms. Allocated memory is still 50.3 MB. Free memory was 26.0 MB in the beginning and 23.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:39,445 INFO L168 Benchmark]: Boogie Preprocessor took 44.21 ms. Allocated memory is still 50.3 MB. Free memory was 23.9 MB in the beginning and 22.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:39,446 INFO L168 Benchmark]: RCFGBuilder took 23664.45 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 21.9 MB in the beginning and 43.3 MB in the end (delta: -21.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:39,447 INFO L168 Benchmark]: TraceAbstraction took 4214.78 ms. Allocated memory is still 71.3 MB. Free memory was 42.7 MB in the beginning and 38.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:39,448 INFO L168 Benchmark]: Witness Printer took 75.07 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 34.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:39,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory is still 33.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.47 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 26.0 MB in the end (delta: -192.5 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.09 ms. Allocated memory is still 50.3 MB. Free memory was 26.0 MB in the beginning and 23.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.21 ms. Allocated memory is still 50.3 MB. Free memory was 23.9 MB in the beginning and 22.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 23664.45 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 21.9 MB in the beginning and 43.3 MB in the end (delta: -21.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4214.78 ms. Allocated memory is still 71.3 MB. Free memory was 42.7 MB in the beginning and 38.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Witness Printer took 75.07 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 34.2 MB in the end (delta: 3.5 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: [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) [L3] __assert_fail("0", "double_req_bl_0931.c", 3, "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, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 21 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.3s 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...