./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_0683a.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 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 ............................................................................................................................................................................................................................................................................................................................................................................................................ 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_0683a.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 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:31:46,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:31:46,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:31:46,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:31:46,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:31:46,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:31:46,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:31:46,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:31:46,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:31:46,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:31:46,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:31:46,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:31:46,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:31:46,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:31:46,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:31:46,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:31:46,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:31:46,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:31:46,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:31:46,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:31:46,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:31:46,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:31:46,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:31:46,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:31:46,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:31:46,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:31:46,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:31:46,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:31:46,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:31:46,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:31:46,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:31:46,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:31:46,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:31:46,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:31:46,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:31:46,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:31:46,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:31:46,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:31:46,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:31:46,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:31:46,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:31:46,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:31:46,508 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:31:46,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:31:46,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:31:46,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:31:46,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:31:46,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:31:46,510 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:31:46,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:31:46,510 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:31:46,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:31:46,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:31:46,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:31:46,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:31:46,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:31:46,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:31:46,511 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:31:46,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:31:46,512 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:31:46,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:31:46,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:31:46,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:31:46,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:31:46,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:31:46,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:31:46,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:31:46,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:31:46,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:31:46,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:31:46,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:31:46,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:31:46,513 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 [2021-08-26 01:31:46,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:31:46,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:31:46,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:31:46,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:31:46,757 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:31:46,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-08-26 01:31:46,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8836bd5f/43b76c097e3c4bd689641e1ae46827ee/FLAGa401b5947 [2021-08-26 01:31:47,125 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:31:47,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-08-26 01:31:47,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8836bd5f/43b76c097e3c4bd689641e1ae46827ee/FLAGa401b5947 [2021-08-26 01:31:47,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8836bd5f/43b76c097e3c4bd689641e1ae46827ee [2021-08-26 01:31:47,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:31:47,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:31:47,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:31:47,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:31:47,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:31:47,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8c3f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47, skipping insertion in model container [2021-08-26 01:31:47,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:31:47,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:31:47,672 WARN L228 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_0683a.c[7147,7160] [2021-08-26 01:31:47,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:31:47,696 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:31:47,746 WARN L228 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_0683a.c[7147,7160] [2021-08-26 01:31:47,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:31:47,764 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:31:47,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47 WrapperNode [2021-08-26 01:31:47,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:31:47,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:31:47,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:31:47,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:31:47,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:31:47,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:31:47,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:31:47,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:31:47,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:31:47,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:31:47,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:31:47,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:31:47,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (1/1) ... [2021-08-26 01:31:47,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:31:47,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:31:47,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:31:47,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:31:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:31:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:31:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:31:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:31:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:31:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:31:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:31:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:31:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-08-26 01:31:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:31:48,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:31:48,396 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-08-26 01:31:48,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:31:48 BoogieIcfgContainer [2021-08-26 01:31:48,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:31:48,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:31:48,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:31:48,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:31:48,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:31:47" (1/3) ... [2021-08-26 01:31:48,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6799ac60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:31:48, skipping insertion in model container [2021-08-26 01:31:48,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:47" (2/3) ... [2021-08-26 01:31:48,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6799ac60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:31:48, skipping insertion in model container [2021-08-26 01:31:48,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:31:48" (3/3) ... [2021-08-26 01:31:48,401 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2021-08-26 01:31:48,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:31:48,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:31:48,432 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:31:48,435 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:31:48,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:31:48,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.6929133858267718) internal successors, (215), 128 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:48,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 01:31:48,449 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:31:48,450 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:31:48,450 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:31:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:31:48,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2021-08-26 01:31:48,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:31:48,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829242251] [2021-08-26 01:31:48,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:48,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:31:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:48,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:31:48,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829242251] [2021-08-26 01:31:48,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829242251] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:31:48,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:31:48,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:31:48,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877045689] [2021-08-26 01:31:48,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:31:48,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:31:48,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:31:48,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:31:48,569 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.6929133858267718) internal successors, (215), 128 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:31:48,586 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2021-08-26 01:31:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:31:48,587 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-26 01:31:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:31:48,593 INFO L225 Difference]: With dead ends: 256 [2021-08-26 01:31:48,593 INFO L226 Difference]: Without dead ends: 125 [2021-08-26 01:31:48,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:31:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-08-26 01:31:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-08-26 01:31:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 124 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:48,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2021-08-26 01:31:48,620 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2021-08-26 01:31:48,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:31:48,620 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2021-08-26 01:31:48,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:48,621 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2021-08-26 01:31:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 01:31:48,623 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:31:48,623 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:31:48,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:31:48,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:31:48,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:31:48,625 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2021-08-26 01:31:48,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:31:48,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783856888] [2021-08-26 01:31:48,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:48,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:31:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:48,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:31:48,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783856888] [2021-08-26 01:31:48,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783856888] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:31:48,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:31:48,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 01:31:48,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372749043] [2021-08-26 01:31:48,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 01:31:48,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:31:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 01:31:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:31:48,694 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:48,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:31:48,715 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2021-08-26 01:31:48,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 01:31:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-26 01:31:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:31:48,721 INFO L225 Difference]: With dead ends: 239 [2021-08-26 01:31:48,722 INFO L226 Difference]: Without dead ends: 125 [2021-08-26 01:31:48,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:31:48,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-08-26 01:31:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-08-26 01:31:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.403225806451613) internal successors, (174), 124 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2021-08-26 01:31:48,740 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2021-08-26 01:31:48,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:31:48,740 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2021-08-26 01:31:48,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:48,740 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2021-08-26 01:31:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 01:31:48,741 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:31:48,741 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:31:48,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:31:48,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:31:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:31:48,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2021-08-26 01:31:48,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:31:48,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805460325] [2021-08-26 01:31:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:48,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:31:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:31:48,874 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:31:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:31:48,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:31:48,983 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:31:48,985 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:31:48,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 01:31:48,989 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:31:49,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:31:49 BoogieIcfgContainer [2021-08-26 01:31:49,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:31:49,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:31:49,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:31:49,042 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:31:49,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:31:48" (3/4) ... [2021-08-26 01:31:49,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:31:49,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:31:49,045 INFO L168 Benchmark]: Toolchain (without parser) took 1515.29 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 65.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:49,046 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 75.5 MB. Free memory was 58.0 MB in the beginning and 57.9 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:49,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.38 ms. Allocated memory is still 75.5 MB. Free memory was 57.9 MB in the beginning and 55.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:49,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.44 ms. Allocated memory is still 75.5 MB. Free memory was 55.7 MB in the beginning and 51.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:49,047 INFO L168 Benchmark]: Boogie Preprocessor took 64.49 ms. Allocated memory is still 75.5 MB. Free memory was 51.8 MB in the beginning and 48.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:49,047 INFO L168 Benchmark]: RCFGBuilder took 523.22 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 48.3 MB in the beginning and 68.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:49,047 INFO L168 Benchmark]: TraceAbstraction took 643.42 ms. Allocated memory is still 98.6 MB. Free memory was 67.6 MB in the beginning and 65.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:49,047 INFO L168 Benchmark]: Witness Printer took 2.34 ms. Allocated memory is still 98.6 MB. Free memory is still 65.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:49,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 75.5 MB. Free memory was 58.0 MB in the beginning and 57.9 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 234.38 ms. Allocated memory is still 75.5 MB. Free memory was 57.9 MB in the beginning and 55.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.44 ms. Allocated memory is still 75.5 MB. Free memory was 55.7 MB in the beginning and 51.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.49 ms. Allocated memory is still 75.5 MB. Free memory was 51.8 MB in the beginning and 48.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 523.22 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 48.3 MB in the beginning and 68.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 643.42 ms. Allocated memory is still 98.6 MB. Free memory was 67.6 MB in the beginning and 65.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * Witness Printer took 2.34 ms. Allocated memory is still 98.6 MB. Free memory is still 65.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 300]: 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 299. 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L248] __int32_t hx, lx; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L294] EXPR isinf_double(x) && isfinite_double(y) [L262] __int32_t hx; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L294] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L300] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 558.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 7.8ms, AutomataDifference: 63.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 355 SDtfs, 0 SDslu, 169 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 32.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.4ms SsaConstructionTime, 170.5ms SatisfiabilityAnalysisTime, 62.3ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:31:49,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:31:50,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:31:50,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:31:50,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:31:50,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:31:50,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:31:50,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:31:50,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:31:50,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:31:50,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:31:50,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:31:50,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:31:50,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:31:50,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:31:50,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:31:50,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:31:50,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:31:50,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:31:50,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:31:50,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:31:50,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:31:50,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:31:50,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:31:50,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:31:50,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:31:50,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:31:50,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:31:50,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:31:50,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:31:50,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:31:50,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:31:50,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:31:50,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:31:50,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:31:50,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:31:50,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:31:50,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:31:50,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:31:50,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:31:50,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:31:50,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:31:50,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:31:50,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:31:50,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:31:50,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:31:50,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:31:50,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:31:50,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:31:50,639 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:31:50,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:31:50,640 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:31:50,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:31:50,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:31:50,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:31:50,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:31:50,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:31:50,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:31:50,641 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:31:50,641 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:31:50,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:31:50,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:31:50,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:31:50,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:31:50,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:31:50,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:31:50,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:31:50,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:31:50,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:31:50,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:31:50,642 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:31:50,642 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:31:50,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:31:50,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:31:50,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:31:50,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 [2021-08-26 01:31:50,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:31:50,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:31:50,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:31:50,883 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:31:50,883 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:31:50,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-08-26 01:31:50,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afe86356/6b5a01f8a8494cc2be3945f348698c98/FLAGa5e218f99 [2021-08-26 01:31:51,248 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:31:51,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-08-26 01:31:51,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afe86356/6b5a01f8a8494cc2be3945f348698c98/FLAGa5e218f99 [2021-08-26 01:31:51,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afe86356/6b5a01f8a8494cc2be3945f348698c98 [2021-08-26 01:31:51,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:31:51,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:31:51,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:31:51,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:31:51,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:31:51,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:51,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e35495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51, skipping insertion in model container [2021-08-26 01:31:51,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:51,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:31:51,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:31:51,833 WARN L228 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_0683a.c[7147,7160] [2021-08-26 01:31:51,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:31:51,866 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:31:51,939 WARN L228 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_0683a.c[7147,7160] [2021-08-26 01:31:51,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:31:51,965 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:31:51,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51 WrapperNode [2021-08-26 01:31:51,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:31:51,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:31:51,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:31:51,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:31:51,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:51,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:31:52,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:31:52,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:31:52,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:31:52,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:31:52,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:31:52,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:31:52,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:31:52,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (1/1) ... [2021-08-26 01:31:52,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:31:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:31:52,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:31:52,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:31:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:31:52,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:31:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:32:29,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:32:29,966 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-08-26 01:32:29,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:32:29 BoogieIcfgContainer [2021-08-26 01:32:29,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:32:29,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:32:29,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:32:29,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:32:29,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:31:51" (1/3) ... [2021-08-26 01:32:29,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53981ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:32:29, skipping insertion in model container [2021-08-26 01:32:29,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:31:51" (2/3) ... [2021-08-26 01:32:29,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53981ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:32:29, skipping insertion in model container [2021-08-26 01:32:29,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:32:29" (3/3) ... [2021-08-26 01:32:29,973 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2021-08-26 01:32:29,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:32:29,976 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:32:30,003 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:32:30,007 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:32:30,008 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:32:30,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.6929133858267718) internal successors, (215), 128 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:32:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 01:32:30,032 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:32:30,032 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:32:30,033 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:32:30,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:32:30,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2021-08-26 01:32:30,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:32:30,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328253624] [2021-08-26 01:32:30,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:32:30,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:32:30,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:32:30,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:32:30,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:32:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:32:30,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:32:30,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:32:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:32:30,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:32:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:32:31,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:32:31,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328253624] [2021-08-26 01:32:31,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328253624] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:32:31,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:32:31,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:32:31,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427775220] [2021-08-26 01:32:31,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:32:31,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:32:31,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:32:31,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:32:31,363 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.6929133858267718) internal successors, (215), 128 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:32:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:32:31,381 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2021-08-26 01:32:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:32:31,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-26 01:32:31,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:32:31,388 INFO L225 Difference]: With dead ends: 256 [2021-08-26 01:32:31,388 INFO L226 Difference]: Without dead ends: 125 [2021-08-26 01:32:31,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:32:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-08-26 01:32:31,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-08-26 01:32:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 124 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:32:31,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2021-08-26 01:32:31,414 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2021-08-26 01:32:31,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:32:31,414 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2021-08-26 01:32:31,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:32:31,414 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2021-08-26 01:32:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 01:32:31,415 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:32:31,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:32:31,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-26 01:32:31,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:32:31,617 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:32:31,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:32:31,617 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2021-08-26 01:32:31,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:32:31,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356400598] [2021-08-26 01:32:31,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:32:31,618 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:32:31,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:32:31,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:32:31,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:32:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:32:31,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-26 01:32:31,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:32:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:32:32,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:32:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:32:33,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:32:33,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356400598] [2021-08-26 01:32:33,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356400598] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:32:33,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:32:33,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-26 01:32:33,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907811502] [2021-08-26 01:32:33,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 01:32:33,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:32:33,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 01:32:33,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:32:33,023 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:32:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:32:33,203 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2021-08-26 01:32:33,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 01:32:33,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-26 01:32:33,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:32:33,206 INFO L225 Difference]: With dead ends: 239 [2021-08-26 01:32:33,206 INFO L226 Difference]: Without dead ends: 125 [2021-08-26 01:32:33,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 123.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:32:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-08-26 01:32:33,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-08-26 01:32:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.403225806451613) internal successors, (174), 124 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:32:33,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2021-08-26 01:32:33,216 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2021-08-26 01:32:33,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:32:33,216 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2021-08-26 01:32:33,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:32:33,217 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2021-08-26 01:32:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 01:32:33,217 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:32:33,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:32:33,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 01:32:33,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:32:33,429 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:32:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:32:33,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2021-08-26 01:32:33,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:32:33,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127067274] [2021-08-26 01:32:33,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:32:33,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:32:33,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:32:33,431 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:32:33,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:32:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:32:34,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-26 01:32:34,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:32:35,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-26 01:32:45,005 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-08-26 01:32:45,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 94 [2021-08-26 01:32:51,772 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:32:51,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 31 [2021-08-26 01:33:02,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:33:02,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:33:56,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:33:56,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127067274] [2021-08-26 01:33:56,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:33:56,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1103981476] [2021-08-26 01:33:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:33:56,549 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 01:33:56,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 01:33:56,552 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 01:33:56,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-08-26 01:33:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:33:58,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-26 01:33:58,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:33:59,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-26 01:34:06,821 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-08-26 01:34:06,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 94 [2021-08-26 01:34:12,491 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:34:12,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 31 [2021-08-26 01:34:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:17,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:34:44,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:34:44,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632692849] [2021-08-26 01:34:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:44,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 01:34:44,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:34:44,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 01:34:44,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-26 01:34:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:44,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-08-26 01:34:44,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:34:45,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-26 01:34:54,220 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-08-26 01:34:54,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 94 [2021-08-26 01:35:01,414 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:35:01,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 31 [2021-08-26 01:35:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:35:26,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:36:03,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:36:03,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:36:03,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-26 01:36:03,888 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-26 01:36:03,888 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-26 01:36:03,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:36:03,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:36:04,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-26 01:36:04,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 01:36:04,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:36:04,497 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:36:04,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:36:04 BoogieIcfgContainer [2021-08-26 01:36:04,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:36:04,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:36:04,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:36:04,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:36:04,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:32:29" (3/4) ... [2021-08-26 01:36:04,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:36:04,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:36:04,511 INFO L168 Benchmark]: Toolchain (without parser) took 252836.02 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 46.9 MB in the beginning and 48.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:04,511 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory is still 47.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:36:04,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.44 ms. Allocated memory is still 67.1 MB. Free memory was 46.8 MB in the beginning and 45.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:04,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.08 ms. Allocated memory is still 67.1 MB. Free memory was 45.0 MB in the beginning and 41.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:04,512 INFO L168 Benchmark]: Boogie Preprocessor took 70.01 ms. Allocated memory is still 67.1 MB. Free memory was 41.2 MB in the beginning and 37.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:04,513 INFO L168 Benchmark]: RCFGBuilder took 37864.07 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 37.3 MB in the beginning and 61.1 MB in the end (delta: -23.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:04,513 INFO L168 Benchmark]: TraceAbstraction took 214537.88 ms. Allocated memory is still 96.5 MB. Free memory was 60.5 MB in the beginning and 48.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:04,513 INFO L168 Benchmark]: Witness Printer took 2.33 ms. Allocated memory is still 96.5 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:36:04,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory is still 47.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.44 ms. Allocated memory is still 67.1 MB. Free memory was 46.8 MB in the beginning and 45.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.08 ms. Allocated memory is still 67.1 MB. Free memory was 45.0 MB in the beginning and 41.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.01 ms. Allocated memory is still 67.1 MB. Free memory was 41.2 MB in the beginning and 37.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 37864.07 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 37.3 MB in the beginning and 61.1 MB in the end (delta: -23.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 214537.88 ms. Allocated memory is still 96.5 MB. Free memory was 60.5 MB in the beginning and 48.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.33 ms. Allocated memory is still 96.5 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 300]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. 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; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L248] __int32_t hx, lx; [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L294] EXPR isinf_double(x) && isfinite_double(y) [L262] __int32_t hx; [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [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 [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 [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == -0.0 && __signbit_double(res) == 1 [L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L300] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 214495.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 17.4ms, AutomataDifference: 221.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 355 SDtfs, 0 SDslu, 169 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 162.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 124.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 45.0ms SsaConstructionTime, 438.2ms SatisfiabilityAnalysisTime, 2107.5ms InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 279 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:36:04,745 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-26 01:36:04,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...