./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0670.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0670.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 bb50b7c19c9d21598c287653a966a53d9b3d656b ........................................................................................................................................................................................................................................................................................................................................... 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_0670.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 bb50b7c19c9d21598c287653a966a53d9b3d656b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-096883e [2020-12-01 23:11:23,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:23,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:23,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:11:23,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:11:23,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:11:23,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:11:23,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:11:23,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:11:23,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:11:23,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:11:23,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:11:23,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:23,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:23,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:23,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:23,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:23,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:23,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:23,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:23,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:23,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:23,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:23,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:23,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:11:23,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:11:23,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:11:23,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:11:23,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:11:23,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:11:23,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:23,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:23,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:23,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:23,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:23,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:23,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:23,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:23,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:23,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:23,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:23,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:11:23,439 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:23,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:23,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:23,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:23,442 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:23,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:23,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:23,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:11:23,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:23,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:23,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:23,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:23,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:23,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:23,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:23,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:23,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:23,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:23,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:23,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:23,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:23,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:23,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:23,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:23,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:23,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:11:23,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:11:23,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:23,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:23,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb50b7c19c9d21598c287653a966a53d9b3d656b [2020-12-01 23:11:23,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:23,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:23,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:23,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:23,932 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:23,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-12-01 23:11:24,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b95726e/b22e1928e8154ed580165c42f5fd40cd/FLAG1b2cabc51 [2020-12-01 23:11:24,746 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:24,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-12-01 23:11:24,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b95726e/b22e1928e8154ed580165c42f5fd40cd/FLAG1b2cabc51 [2020-12-01 23:11:25,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b95726e/b22e1928e8154ed580165c42f5fd40cd [2020-12-01 23:11:25,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:25,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:25,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:25,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:25,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:25,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbf3c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25, skipping insertion in model container [2020-12-01 23:11:25,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:25,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:25,450 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2020-12-01 23:11:25,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:25,479 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:25,610 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2020-12-01 23:11:25,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:25,654 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:25,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25 WrapperNode [2020-12-01 23:11:25,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:25,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:25,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:25,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:25,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:25,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:25,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:25,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:25,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:25,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:25,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:25,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:25,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:26,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:11:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:11:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:11:26,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:11:26,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:26,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:26,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:11:26,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 23:11:26,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:11:26,969 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:11:26,970 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-12-01 23:11:26,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:26 BoogieIcfgContainer [2020-12-01 23:11:26,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:11:26,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:11:26,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:11:26,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:11:26,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:25" (1/3) ... [2020-12-01 23:11:26,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64537f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:26, skipping insertion in model container [2020-12-01 23:11:26,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (2/3) ... [2020-12-01 23:11:26,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64537f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:26, skipping insertion in model container [2020-12-01 23:11:26,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:26" (3/3) ... [2020-12-01 23:11:26,981 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2020-12-01 23:11:26,996 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:11:27,001 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:11:27,013 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:11:27,051 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:11:27,051 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:11:27,051 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:11:27,051 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:11:27,051 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:11:27,052 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:11:27,052 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:11:27,052 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:11:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-12-01 23:11:27,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:11:27,076 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:27,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:27,078 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:27,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:27,084 INFO L82 PathProgramCache]: Analyzing trace with hash 2082511170, now seen corresponding path program 1 times [2020-12-01 23:11:27,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:27,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531744537] [2020-12-01 23:11:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:11:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:11:27,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531744537] [2020-12-01 23:11:27,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:11:27,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:11:27,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658909087] [2020-12-01 23:11:27,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:11:27,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:11:27,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:11:27,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:27,427 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-12-01 23:11:27,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:11:27,466 INFO L93 Difference]: Finished difference Result 232 states and 388 transitions. [2020-12-01 23:11:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:11:27,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-01 23:11:27,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:11:27,480 INFO L225 Difference]: With dead ends: 232 [2020-12-01 23:11:27,480 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 23:11:27,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 23:11:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-01 23:11:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-01 23:11:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-12-01 23:11:27,533 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 14 [2020-12-01 23:11:27,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:11:27,534 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-12-01 23:11:27,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:11:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-12-01 23:11:27,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 23:11:27,535 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:27,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:27,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:11:27,536 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:27,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1907166553, now seen corresponding path program 1 times [2020-12-01 23:11:27,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:27,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500864925] [2020-12-01 23:11:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:27,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:27,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:27,772 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:11:27,773 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:11:27,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:11:27,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:11:27 BoogieIcfgContainer [2020-12-01 23:11:27,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:11:27,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:11:27,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:11:27,850 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:11:27,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:26" (3/4) ... [2020-12-01 23:11:27,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:11:27,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:11:27,857 INFO L168 Benchmark]: Toolchain (without parser) took 2773.24 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 26.4 MB in the beginning and 46.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:27,858 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 50.3 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:27,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.24 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:27,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.28 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 21.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:27,861 INFO L168 Benchmark]: Boogie Preprocessor took 85.95 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 21.2 MB in the beginning and 45.0 MB in the end (delta: -23.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:27,862 INFO L168 Benchmark]: RCFGBuilder took 1099.94 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 38.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:27,863 INFO L168 Benchmark]: TraceAbstraction took 875.69 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 37.8 MB in the beginning and 46.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:27,863 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 79.7 MB. Free memory is still 46.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:27,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 50.3 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 573.24 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 124.28 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 21.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.95 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 21.2 MB in the beginning and 45.0 MB in the end (delta: -23.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1099.94 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 38.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875.69 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 37.8 MB in the beginning and 46.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.64 ms. Allocated memory is still 79.7 MB. Free memory is still 46.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 264]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 247. 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] [L255] double x = __VERIFIER_nondet_double(); [L256] double y = __VERIFIER_nondet_double(); [L247] return x != x; 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] [L258] isnan_double(x) || isnan_double(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] [L258] COND TRUE isnan_double(x) || isnan_double(y) [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] [L260] double res = __ieee754_atan2(y, x); [L247] return x != x; 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] [L263] COND TRUE !isnan_double(res) [L264] 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, 119 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: 169 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=119occurred 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, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-096883e [2020-12-01 23:11:30,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:30,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:30,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:11:30,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:11:30,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:11:30,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:11:30,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:11:30,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:11:30,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:11:30,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:11:30,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:11:30,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:30,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:30,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:30,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:30,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:30,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:30,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:30,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:30,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:30,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:30,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:30,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:30,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:11:30,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:11:30,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:11:30,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:11:30,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:11:30,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:11:30,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:30,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:30,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:30,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:30,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:30,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:30,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:30,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:30,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:30,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:30,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:30,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:11:30,507 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:30,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:30,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:30,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:30,509 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:30,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:30,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:30,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:30,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:30,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:30,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:30,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:30,511 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:11:30,512 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:11:30,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:30,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:30,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:30,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:30,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:30,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:30,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:30,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:30,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:30,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:30,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:30,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:30,515 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:11:30,515 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:11:30,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:30,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:30,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:11:30,516 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb50b7c19c9d21598c287653a966a53d9b3d656b [2020-12-01 23:11:31,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:31,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:31,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:31,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:31,081 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:31,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-12-01 23:11:31,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d04e8a65/d2e7b73bd8a742e29ac694bd25d95331/FLAG1b7bd6a97 [2020-12-01 23:11:31,769 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:31,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-12-01 23:11:31,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d04e8a65/d2e7b73bd8a742e29ac694bd25d95331/FLAG1b7bd6a97 [2020-12-01 23:11:32,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d04e8a65/d2e7b73bd8a742e29ac694bd25d95331 [2020-12-01 23:11:32,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:32,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:32,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:32,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:32,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:32,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4654cf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32, skipping insertion in model container [2020-12-01 23:11:32,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:32,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:32,513 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2020-12-01 23:11:32,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:32,534 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:32,606 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2020-12-01 23:11:32,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:32,659 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:32,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32 WrapperNode [2020-12-01 23:11:32,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:32,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:32,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:32,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:32,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:32,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:32,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:32,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:32,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:32,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:32,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:32,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:32,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:32,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:11:32,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:11:32,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:11:32,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:32,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 23:11:32,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:11:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:11:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:12:25,027 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:12:25,027 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-12-01 23:12:25,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:25 BoogieIcfgContainer [2020-12-01 23:12:25,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:12:25,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:12:25,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:12:25,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:12:25,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:32" (1/3) ... [2020-12-01 23:12:25,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f97321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:25, skipping insertion in model container [2020-12-01 23:12:25,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32" (2/3) ... [2020-12-01 23:12:25,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f97321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:25, skipping insertion in model container [2020-12-01 23:12:25,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:25" (3/3) ... [2020-12-01 23:12:25,040 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2020-12-01 23:12:25,054 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:12:25,058 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:12:25,069 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:12:25,095 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:12:25,095 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:12:25,095 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:12:25,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:12:25,096 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:12:25,096 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:12:25,096 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:12:25,096 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:12:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-12-01 23:12:25,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:12:25,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:25,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:25,120 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:25,127 INFO L82 PathProgramCache]: Analyzing trace with hash 2082511170, now seen corresponding path program 1 times [2020-12-01 23:12:25,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:25,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948195915] [2020-12-01 23:12:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:25,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:12:25,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:25,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:25,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948195915] [2020-12-01 23:12:25,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:25,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:12:25,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946697429] [2020-12-01 23:12:25,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:12:25,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:25,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:12:25,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:12:25,704 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-12-01 23:12:25,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:12:25,739 INFO L93 Difference]: Finished difference Result 232 states and 388 transitions. [2020-12-01 23:12:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:12:25,741 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-01 23:12:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:12:25,754 INFO L225 Difference]: With dead ends: 232 [2020-12-01 23:12:25,754 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 23:12:25,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:12:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 23:12:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-01 23:12:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-01 23:12:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-12-01 23:12:25,810 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 14 [2020-12-01 23:12:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:12:25,811 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-12-01 23:12:25,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:12:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-12-01 23:12:25,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 23:12:25,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:25,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:26,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:12:26,028 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1907166553, now seen corresponding path program 1 times [2020-12-01 23:12:26,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:26,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309722198] [2020-12-01 23:12:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:26,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 23:12:26,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:27,264 WARN L197 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-01 23:12:27,286 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-12-01 23:12:27,287 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 23:12:28,025 WARN L197 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-01 23:12:28,401 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:12:28,886 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:12:30,217 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-01 23:12:30,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 23:12:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:32,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:39,368 WARN L197 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:12:45,077 WARN L197 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:12:52,167 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 10 [2020-12-01 23:12:59,363 WARN L197 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 23:12:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:59,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309722198] [2020-12-01 23:12:59,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:59,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2020-12-01 23:12:59,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791519117] [2020-12-01 23:12:59,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-01 23:12:59,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:59,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-01 23:12:59,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-12-01 23:12:59,472 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 17 states. [2020-12-01 23:13:05,033 WARN L197 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-01 23:13:06,940 WARN L197 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 11 [2020-12-01 23:13:09,219 WARN L197 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2020-12-01 23:13:16,272 WARN L197 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2020-12-01 23:13:23,761 WARN L197 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-12-01 23:13:36,469 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-01 23:17:26,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:17:26,218 INFO L93 Difference]: Finished difference Result 213 states and 299 transitions. [2020-12-01 23:17:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-01 23:17:26,279 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 16 [2020-12-01 23:17:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:17:26,282 INFO L225 Difference]: With dead ends: 213 [2020-12-01 23:17:26,283 INFO L226 Difference]: Without dead ends: 208 [2020-12-01 23:17:26,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 44.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-12-01 23:17:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-12-01 23:17:26,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 123. [2020-12-01 23:17:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-12-01 23:17:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 172 transitions. [2020-12-01 23:17:26,310 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 172 transitions. Word has length 16 [2020-12-01 23:17:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:17:26,313 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 172 transitions. [2020-12-01 23:17:26,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-01 23:17:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 172 transitions. [2020-12-01 23:17:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 23:17:26,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:17:26,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:17:26,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:17:26,516 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:17:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:17:26,517 INFO L82 PathProgramCache]: Analyzing trace with hash 2144381910, now seen corresponding path program 1 times [2020-12-01 23:17:26,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:17:26,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716980044] [2020-12-01 23:17:26,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 23:17:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:17:26,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 23:17:26,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:17:27,749 WARN L197 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-01 23:17:27,768 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-12-01 23:17:27,769 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 23:17:28,698 WARN L197 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-01 23:17:29,124 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:17:30,550 WARN L197 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-01 23:17:30,556 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 23:17:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:17:32,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:17:40,524 WARN L197 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:17:47,214 WARN L197 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 10 [2020-12-01 23:17:55,104 WARN L197 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 23:17:55,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:17:55,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716980044] [2020-12-01 23:17:55,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:17:55,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-12-01 23:17:55,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436571853] [2020-12-01 23:17:55,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-01 23:17:55,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:17:55,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-01 23:17:55,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-12-01 23:17:55,259 INFO L87 Difference]: Start difference. First operand 123 states and 172 transitions. Second operand 15 states. [2020-12-01 23:18:04,022 WARN L197 SmtUtils]: Spent 3.36 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 23:18:07,889 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-01 23:18:10,751 WARN L197 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 26 DAG size of output: 13 [2020-12-01 23:18:16,397 WARN L197 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 33 DAG size of output: 16 [2020-12-01 23:18:20,863 WARN L197 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 35 DAG size of output: 18 [2020-12-01 23:19:07,188 WARN L197 SmtUtils]: Spent 3.98 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-01 23:22:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:22:26,709 INFO L93 Difference]: Finished difference Result 213 states and 298 transitions. [2020-12-01 23:22:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 23:22:26,919 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-12-01 23:22:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:22:26,921 INFO L225 Difference]: With dead ends: 213 [2020-12-01 23:22:26,921 INFO L226 Difference]: Without dead ends: 208 [2020-12-01 23:22:26,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 49.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-12-01 23:22:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-12-01 23:22:26,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 128. [2020-12-01 23:22:26,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-12-01 23:22:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 179 transitions. [2020-12-01 23:22:26,949 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 179 transitions. Word has length 17 [2020-12-01 23:22:26,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:22:26,950 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 179 transitions. [2020-12-01 23:22:26,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-01 23:22:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 179 transitions. [2020-12-01 23:22:26,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 23:22:26,954 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:22:26,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:22:27,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:22:27,169 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:22:27,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:22:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1759093575, now seen corresponding path program 1 times [2020-12-01 23:22:27,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:22:27,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648213654] [2020-12-01 23:22:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-01 23:22:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:22:27,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 23:22:27,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:22:28,004 WARN L197 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 23:22:28,009 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-12-01 23:22:28,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 23:22:28,571 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-01 23:22:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:22:29,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:22:30,599 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:22:32,535 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 23:22:33,602 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 23:22:34,331 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-01 23:22:35,048 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-01 23:22:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:22:35,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648213654] [2020-12-01 23:22:35,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:22:35,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2020-12-01 23:22:35,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018539439] [2020-12-01 23:22:35,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-01 23:22:35,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:22:35,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 23:22:35,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-12-01 23:22:35,096 INFO L87 Difference]: Start difference. First operand 128 states and 179 transitions. Second operand 14 states. [2020-12-01 23:22:39,277 WARN L197 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-01 23:22:40,512 WARN L197 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2020-12-01 23:22:42,362 WARN L197 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2020-12-01 23:22:43,461 WARN L197 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-12-01 23:22:44,816 WARN L197 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2020-12-01 23:22:45,970 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-01 23:22:49,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:22:49,746 INFO L93 Difference]: Finished difference Result 224 states and 312 transitions. [2020-12-01 23:22:49,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-01 23:22:49,748 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-12-01 23:22:49,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:22:49,750 INFO L225 Difference]: With dead ends: 224 [2020-12-01 23:22:49,750 INFO L226 Difference]: Without dead ends: 191 [2020-12-01 23:22:49,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-12-01 23:22:49,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-12-01 23:22:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 132. [2020-12-01 23:22:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-01 23:22:49,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 184 transitions. [2020-12-01 23:22:49,763 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 184 transitions. Word has length 21 [2020-12-01 23:22:49,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:22:49,763 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 184 transitions. [2020-12-01 23:22:49,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-01 23:22:49,763 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 184 transitions. [2020-12-01 23:22:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 23:22:49,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:22:49,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:22:49,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 23:22:49,981 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:22:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:22:49,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1210389367, now seen corresponding path program 1 times [2020-12-01 23:22:49,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:22:49,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547663931] [2020-12-01 23:22:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-01 23:22:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:22:50,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:22:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:22:51,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:22:51,408 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:22:51,413 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:22:51,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-01 23:22:51,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:22:51 BoogieIcfgContainer [2020-12-01 23:22:51,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:22:51,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:22:51,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:22:51,751 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:22:51,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:25" (3/4) ... [2020-12-01 23:22:51,755 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:22:51,897 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:22:51,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:22:51,899 INFO L168 Benchmark]: Toolchain (without parser) took 679773.63 ms. Allocated memory was 46.1 MB in the beginning and 71.3 MB in the end (delta: 25.2 MB). Free memory was 22.8 MB in the beginning and 48.8 MB in the end (delta: -26.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:22:51,899 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 25.5 MB in the beginning and 25.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:22:51,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.87 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.6 MB in the beginning and 25.9 MB in the end (delta: -3.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:22:51,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.38 ms. Allocated memory is still 56.6 MB. Free memory was 25.9 MB in the beginning and 37.7 MB in the end (delta: -11.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:22:51,903 INFO L168 Benchmark]: Boogie Preprocessor took 76.10 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 33.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:22:51,904 INFO L168 Benchmark]: RCFGBuilder took 52205.54 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 48.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:22:51,908 INFO L168 Benchmark]: TraceAbstraction took 626718.69 ms. Allocated memory is still 71.3 MB. Free memory was 47.7 MB in the beginning and 22.9 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:22:51,909 INFO L168 Benchmark]: Witness Printer took 147.01 ms. Allocated memory is still 71.3 MB. Free memory was 22.9 MB in the beginning and 48.8 MB in the end (delta: -25.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:22:51,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 25.5 MB in the beginning and 25.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 533.87 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.6 MB in the beginning and 25.9 MB in the end (delta: -3.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.38 ms. Allocated memory is still 56.6 MB. Free memory was 25.9 MB in the beginning and 37.7 MB in the end (delta: -11.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.10 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 33.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 52205.54 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 48.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 626718.69 ms. Allocated memory is still 71.3 MB. Free memory was 47.7 MB in the beginning and 22.9 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * Witness Printer took 147.01 ms. Allocated memory is still 71.3 MB. Free memory was 22.9 MB in the beginning and 48.8 MB in the end (delta: -25.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 264]: a call to reach_error is reachable a call to reach_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] [L255] double x = __VERIFIER_nondet_double(); [L256] double y = __VERIFIER_nondet_double(); [L247] return x != x; 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] [L258] isnan_double(x) || isnan_double(y) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L258] COND TRUE isnan_double(x) || isnan_double(y) [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 TRUE (iy | ly) == 0 [L172] case 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] [L173] case 1: [L174] return y; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L260] double res = __ieee754_atan2(y, x); [L247] return x != x; 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] [L263] COND TRUE !isnan_double(res) [L264] 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, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 626.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 553.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 2257 SDslu, 3859 SDs, 0 SdLazy, 712 SolverSat, 44 SolverUnsat, 148 SolverUnknown, 0 SolverNotchecked, 500.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 106.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=4, 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, 4 MinimizatonAttempts, 224 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 68.9s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 128 ConstructedInterpolants, 43 QuantifiedInterpolants, 16456 SizeOfPredicates, 45 NumberOfNonLiveVariables, 590 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...