./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0680a.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_0680a.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 8f92de98b906daa7e020401396539d179eaf9b15 .................................................................................................................................................................................................................................................................................................................................... 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_0680a.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 8f92de98b906daa7e020401396539d179eaf9b15 ........................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:09:42,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:09:42,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:09:42,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:09:42,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:09:42,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:09:42,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:09:42,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:09:42,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:09:42,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:09:42,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:09:42,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:09:42,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:09:42,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:09:42,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:09:42,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:09:42,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:09:42,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:09:42,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:09:42,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:09:42,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:09:42,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:09:42,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:09:42,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:09:42,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:09:42,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:09:42,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:09:42,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:09:42,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:09:42,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:09:42,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:09:42,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:09:42,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:09:42,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:09:42,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:09:42,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:09:42,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:09:42,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:09:42,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:09:43,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:09:43,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:09:43,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:09:43,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:09:43,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:09:43,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:09:43,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:09:43,042 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:09:43,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:09:43,043 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:09:43,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:09:43,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:09:43,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:09:43,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:09:43,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:09:43,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:09:43,044 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:09:43,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:09:43,044 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:09:43,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:09:43,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:09:43,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:09:43,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:09:43,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:09:43,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:09:43,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:09:43,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:09:43,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:09:43,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:09:43,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:09:43,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:09:43,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:09:43,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f92de98b906daa7e020401396539d179eaf9b15 [2020-10-24 23:09:43,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:09:43,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:09:43,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:09:43,541 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:09:43,542 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:09:43,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-10-24 23:09:43,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b78c6c84/88db8b687afe47398a466af263152717/FLAG3d9a3d562 [2020-10-24 23:09:44,567 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:09:44,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-10-24 23:09:44,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b78c6c84/88db8b687afe47398a466af263152717/FLAG3d9a3d562 [2020-10-24 23:09:44,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b78c6c84/88db8b687afe47398a466af263152717 [2020-10-24 23:09:44,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:09:44,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:09:44,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:09:44,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:09:44,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:09:44,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:09:44" (1/1) ... [2020-10-24 23:09:44,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3982b986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:44, skipping insertion in model container [2020-10-24 23:09:44,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:09:44" (1/1) ... [2020-10-24 23:09:44,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:09:44,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:09:45,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:09:45,227 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:09:45,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:09:45,375 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:09:45,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45 WrapperNode [2020-10-24 23:09:45,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:09:45,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:09:45,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:09:45,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:09:45,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:09:45,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:09:45,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:09:45,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:09:45,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (1/1) ... [2020-10-24 23:09:45,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:09:45,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:09:45,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:09:45,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:09:45,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (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 23:09:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:09:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:09:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:09:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:09:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:09:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:09:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:09:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:09:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:09:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:09:46,712 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:09:46,712 INFO L298 CfgBuilder]: Removed 46 assume(true) statements. [2020-10-24 23:09:46,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:09:46 BoogieIcfgContainer [2020-10-24 23:09:46,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:09:46,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:09:46,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:09:46,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:09:46,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:09:44" (1/3) ... [2020-10-24 23:09:46,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1f15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:09:46, skipping insertion in model container [2020-10-24 23:09:46,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:45" (2/3) ... [2020-10-24 23:09:46,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1f15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:09:46, skipping insertion in model container [2020-10-24 23:09:46,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:09:46" (3/3) ... [2020-10-24 23:09:46,725 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c [2020-10-24 23:09:46,739 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:09:46,746 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:09:46,769 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:09:46,798 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:09:46,799 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:09:46,799 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:09:46,799 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:09:46,799 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:09:46,799 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:09:46,799 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:09:46,800 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:09:46,821 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-10-24 23:09:46,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:09:46,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:09:46,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:09:46,829 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:09:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:09:46,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-10-24 23:09:46,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:09:46,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206725903] [2020-10-24 23:09:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:09:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:09:47,088 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 23:09:47,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206725903] [2020-10-24 23:09:47,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:09:47,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:09:47,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927063836] [2020-10-24 23:09:47,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:09:47,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:09:47,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:09:47,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:09:47,121 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-10-24 23:09:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:09:47,161 INFO L93 Difference]: Finished difference Result 225 states and 379 transitions. [2020-10-24 23:09:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:09:47,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:09:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:09:47,178 INFO L225 Difference]: With dead ends: 225 [2020-10-24 23:09:47,179 INFO L226 Difference]: Without dead ends: 110 [2020-10-24 23:09:47,184 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 23:09:47,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-24 23:09:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-24 23:09:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-24 23:09:47,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-10-24 23:09:47,243 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-10-24 23:09:47,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:09:47,244 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-10-24 23:09:47,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:09:47,244 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-10-24 23:09:47,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:09:47,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:09:47,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:09:47,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:09:47,246 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:09:47,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:09:47,248 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-10-24 23:09:47,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:09:47,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518197755] [2020-10-24 23:09:47,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:09:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:09:47,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:09:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:09:47,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:09:47,509 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:09:47,509 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:09:47,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:09:47,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:09:47 BoogieIcfgContainer [2020-10-24 23:09:47,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:09:47,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:09:47,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:09:47,567 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:09:47,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:09:46" (3/4) ... [2020-10-24 23:09:47,572 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:09:47,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:09:47,575 INFO L168 Benchmark]: Toolchain (without parser) took 2720.35 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.9 MB in the beginning and 25.7 MB in the end (delta: -860.1 kB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:09:47,577 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 39.8 MB. Free memory was 18.0 MB in the beginning and 17.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:09:47,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.32 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 20.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:09:47,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.03 ms. Allocated memory is still 48.2 MB. Free memory was 20.9 MB in the beginning and 29.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:09:47,579 INFO L168 Benchmark]: Boogie Preprocessor took 89.03 ms. Allocated memory is still 48.2 MB. Free memory was 29.1 MB in the beginning and 25.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:09:47,581 INFO L168 Benchmark]: RCFGBuilder took 1147.96 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 25.7 MB in the beginning and 24.7 MB in the end (delta: 976.7 kB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:09:47,581 INFO L168 Benchmark]: TraceAbstraction took 848.81 ms. Allocated memory is still 60.8 MB. Free memory was 24.0 MB in the beginning and 26.3 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:09:47,582 INFO L168 Benchmark]: Witness Printer took 6.13 ms. Allocated memory is still 60.8 MB. Free memory is still 26.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:09:47,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 39.8 MB. Free memory was 18.0 MB in the beginning and 17.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 514.32 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 20.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.03 ms. Allocated memory is still 48.2 MB. Free memory was 20.9 MB in the beginning and 29.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.03 ms. Allocated memory is still 48.2 MB. Free memory was 29.1 MB in the beginning and 25.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1147.96 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 25.7 MB in the beginning and 24.7 MB in the end (delta: 976.7 kB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 848.81 ms. Allocated memory is still 60.8 MB. Free memory was 24.0 MB in the beginning and 26.3 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.13 ms. Allocated memory is still 60.8 MB. Free memory is still 26.0 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 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 258. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double x = -0.0; [L254] double y = -0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L256] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L3] __assert_fail("0", "double_req_bl_0680a.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 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=114occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 23:09:50,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:09:50,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:09:50,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:09:50,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:09:50,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:09:50,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:09:50,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:09:50,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:09:50,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:09:50,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:09:50,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:09:50,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:09:50,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:09:50,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:09:50,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:09:50,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:09:50,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:09:50,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:09:50,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:09:50,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:09:50,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:09:50,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:09:50,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:09:50,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:09:50,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:09:50,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:09:50,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:09:50,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:09:50,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:09:50,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:09:50,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:09:50,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:09:50,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:09:50,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:09:50,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:09:50,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:09:50,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:09:50,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:09:50,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:09:50,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:09:50,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:09:50,366 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:09:50,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:09:50,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:09:50,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:09:50,368 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:09:50,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:09:50,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:09:50,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:09:50,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:09:50,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:09:50,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:09:50,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:09:50,370 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:09:50,370 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:09:50,370 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:09:50,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:09:50,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:09:50,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:09:50,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:09:50,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:09:50,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:09:50,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:09:50,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:09:50,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:09:50,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:09:50,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:09:50,372 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:09:50,373 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:09:50,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:09:50,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:09:50,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:09:50,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f92de98b906daa7e020401396539d179eaf9b15 [2020-10-24 23:09:50,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:09:50,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:09:50,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:09:50,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:09:50,805 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:09:50,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-10-24 23:09:50,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fa26e11/c76335bae8ac434ba19c9f141def1840/FLAGff93fee01 [2020-10-24 23:09:51,723 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:09:51,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-10-24 23:09:51,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fa26e11/c76335bae8ac434ba19c9f141def1840/FLAGff93fee01 [2020-10-24 23:09:52,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fa26e11/c76335bae8ac434ba19c9f141def1840 [2020-10-24 23:09:52,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:09:52,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:09:52,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:09:52,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:09:52,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:09:52,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334d5ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52, skipping insertion in model container [2020-10-24 23:09:52,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:09:52,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:09:52,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:09:52,430 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:09:52,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:09:52,528 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:09:52,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52 WrapperNode [2020-10-24 23:09:52,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:09:52,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:09:52,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:09:52,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:09:52,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:09:52,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:09:52,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:09:52,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:09:52,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (1/1) ... [2020-10-24 23:09:52,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:09:52,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:09:52,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:09:52,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:09:52,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (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 23:09:52,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:09:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:09:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:09:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:09:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-24 23:09:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:09:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:09:52,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:09:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:09:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:10:33,257 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:10:33,258 INFO L298 CfgBuilder]: Removed 46 assume(true) statements. [2020-10-24 23:10:33,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:10:33 BoogieIcfgContainer [2020-10-24 23:10:33,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:10:33,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:10:33,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:10:33,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:10:33,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:09:52" (1/3) ... [2020-10-24 23:10:33,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c2dd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:10:33, skipping insertion in model container [2020-10-24 23:10:33,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:09:52" (2/3) ... [2020-10-24 23:10:33,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c2dd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:10:33, skipping insertion in model container [2020-10-24 23:10:33,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:10:33" (3/3) ... [2020-10-24 23:10:33,269 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c [2020-10-24 23:10:33,282 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:10:33,288 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:10:33,302 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:10:33,332 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:10:33,333 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:10:33,333 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:10:33,333 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:10:33,333 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:10:33,333 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:10:33,334 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:10:33,334 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:10:33,351 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-10-24 23:10:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:10:33,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:10:33,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:10:33,359 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:10:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:10:33,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-10-24 23:10:33,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:10:33,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170519295] [2020-10-24 23:10:33,381 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 23:10:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:10:33,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:10:33,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:10:33,828 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 23:10:33,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:10:33,832 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 23:10:33,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170519295] [2020-10-24 23:10:33,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:10:33,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:10:33,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969951328] [2020-10-24 23:10:33,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:10:33,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:10:33,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:10:33,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:10:33,859 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-10-24 23:10:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:10:33,895 INFO L93 Difference]: Finished difference Result 225 states and 379 transitions. [2020-10-24 23:10:33,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:10:33,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:10:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:10:33,916 INFO L225 Difference]: With dead ends: 225 [2020-10-24 23:10:33,916 INFO L226 Difference]: Without dead ends: 110 [2020-10-24 23:10:33,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 23:10:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-24 23:10:33,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-24 23:10:33,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-24 23:10:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-10-24 23:10:34,001 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-10-24 23:10:34,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:10:34,001 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-10-24 23:10:34,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:10:34,002 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-10-24 23:10:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:10:34,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:10:34,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:10:34,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:10:34,219 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:10:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:10:34,221 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-10-24 23:10:34,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:10:34,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972276342] [2020-10-24 23:10:34,223 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 23:10:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:10:34,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-24 23:10:34,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:10:34,993 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 23:10:34,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:10:35,209 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 23:10:35,519 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 23:10:35,729 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 23:10:35,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972276342] [2020-10-24 23:10:35,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:10:35,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-10-24 23:10:35,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746484721] [2020-10-24 23:10:35,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 23:10:35,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:10:35,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 23:10:35,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:10:35,734 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand 12 states. [2020-10-24 23:10:38,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:10:38,778 INFO L93 Difference]: Finished difference Result 161 states and 226 transitions. [2020-10-24 23:10:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:10:38,779 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2020-10-24 23:10:38,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:10:38,781 INFO L225 Difference]: With dead ends: 161 [2020-10-24 23:10:38,781 INFO L226 Difference]: Without dead ends: 71 [2020-10-24 23:10:38,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-24 23:10:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-24 23:10:38,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-24 23:10:38,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-24 23:10:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2020-10-24 23:10:38,794 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 12 [2020-10-24 23:10:38,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:10:38,795 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2020-10-24 23:10:38,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 23:10:38,795 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2020-10-24 23:10:38,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:10:38,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:10:38,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:10:39,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:10:39,012 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:10:39,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:10:39,014 INFO L82 PathProgramCache]: Analyzing trace with hash 808768545, now seen corresponding path program 1 times [2020-10-24 23:10:39,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:10:39,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030041088] [2020-10-24 23:10:39,020 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 23:10:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:10:39,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:10:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:10:40,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:10:40,931 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 23:10:40,931 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:10:41,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:10:41,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:10:41 BoogieIcfgContainer [2020-10-24 23:10:41,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:10:41,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:10:41,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:10:41,224 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:10:41,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:10:33" (3/4) ... [2020-10-24 23:10:41,227 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 23:10:41,351 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:10:41,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:10:41,356 INFO L168 Benchmark]: Toolchain (without parser) took 49330.21 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 25.3 MB in the beginning and 24.7 MB in the end (delta: 573.0 kB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:41,357 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 48.2 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:10:41,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.33 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 21.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:41,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.77 ms. Allocated memory is still 48.2 MB. Free memory was 21.9 MB in the beginning and 31.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:41,364 INFO L168 Benchmark]: Boogie Preprocessor took 104.37 ms. Allocated memory is still 48.2 MB. Free memory was 31.1 MB in the beginning and 27.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:41,364 INFO L168 Benchmark]: RCFGBuilder took 40508.23 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 27.3 MB in the beginning and 38.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:41,365 INFO L168 Benchmark]: TraceAbstraction took 7960.33 ms. Allocated memory is still 62.9 MB. Free memory was 38.3 MB in the beginning and 30.0 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:41,368 INFO L168 Benchmark]: Witness Printer took 128.41 ms. Allocated memory is still 62.9 MB. Free memory was 30.0 MB in the beginning and 24.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:41,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 48.2 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 492.33 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 21.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.77 ms. Allocated memory is still 48.2 MB. Free memory was 21.9 MB in the beginning and 31.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 104.37 ms. Allocated memory is still 48.2 MB. Free memory was 31.1 MB in the beginning and 27.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 40508.23 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 27.3 MB in the beginning and 38.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7960.33 ms. Allocated memory is still 62.9 MB. Free memory was 38.3 MB in the beginning and 30.0 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Witness Printer took 128.41 ms. Allocated memory is still 62.9 MB. Free memory was 30.0 MB in the beginning and 24.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L253] double x = -0.0; [L254] double y = -0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L163-L164] COND FALSE !(((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L166] COND FALSE !(((hx - 0x3ff00000) | lx) == 0) [L168] m = ((hy >> 31) & 1) | ((hx >> 30) & 2) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L170] COND FALSE !((iy | ly) == 0) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L182] COND TRUE (ix | lx) == 0 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] EXPR (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] return (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2; [L256] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L3] __assert_fail("0", "double_req_bl_0680a.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 613 SDslu, 14 SDs, 0 SdLazy, 31 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred 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, 1.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 13 QuantifiedInterpolants, 5024 SizeOfPredicates, 16 NumberOfNonLiveVariables, 254 ConjunctsInSsa, 16 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...