./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0662b.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_0662b.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 c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_0662b.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 c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 ............................................................................................................................................................................................................................................................................................................................................................................................... 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 01:30:02,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:30:02,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:30:02,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:30:02,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:30:02,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:30:02,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:30:02,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:30:02,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:30:02,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:30:02,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:30:02,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:30:02,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:30:02,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:30:02,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:30:02,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:30:02,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:30:02,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:30:02,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:30:02,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:30:02,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:30:02,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:30:02,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:30:02,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:30:02,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:30:02,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:30:02,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:30:02,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:30:02,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:30:02,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:30:02,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:30:02,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:30:02,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:30:02,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:30:02,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:30:02,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:30:02,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:30:02,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:30:02,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:30:02,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:30:02,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:30:02,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:30:02,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:30:02,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:30:02,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:30:02,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:30:02,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:30:02,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:30:02,215 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:30:02,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:30:02,216 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:30:02,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:30:02,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:30:02,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:30:02,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:30:02,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:30:02,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:30:02,217 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:30:02,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:30:02,217 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:30:02,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:30:02,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:30:02,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:30:02,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:30:02,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:02,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:30:02,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:30:02,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:30:02,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:30:02,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:30:02,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:30:02,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:30:02,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 [2021-08-26 01:30:02,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:30:02,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:30:02,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:30:02,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:30:02,647 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:30:02,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-08-26 01:30:02,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcde75289/2ec365d0c93c431d9b1badd506ecb5f2/FLAGbcb8719a3 [2021-08-26 01:30:03,107 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:30:03,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-08-26 01:30:03,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcde75289/2ec365d0c93c431d9b1badd506ecb5f2/FLAGbcb8719a3 [2021-08-26 01:30:03,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcde75289/2ec365d0c93c431d9b1badd506ecb5f2 [2021-08-26 01:30:03,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:30:03,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:30:03,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:03,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:30:03,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:30:03,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0ddf20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03, skipping insertion in model container [2021-08-26 01:30:03,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:30:03,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:30:03,358 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_0662b.c[6224,6237] [2021-08-26 01:30:03,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:03,374 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:30:03,441 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_0662b.c[6224,6237] [2021-08-26 01:30:03,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:03,453 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:30:03,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03 WrapperNode [2021-08-26 01:30:03,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:03,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:03,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:30:03,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:30:03,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:03,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:30:03,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:30:03,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:30:03,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:30:03,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:30:03,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:30:03,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:30:03,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (1/1) ... [2021-08-26 01:30:03,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:03,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:30:03,596 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 01:30:03,598 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 01:30:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:30:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:30:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:30:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:30:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:30:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:30:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:30:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:30:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-08-26 01:30:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:30:04,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:30:04,148 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-08-26 01:30:04,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:04 BoogieIcfgContainer [2021-08-26 01:30:04,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:30:04,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:30:04,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:30:04,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:30:04,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:30:03" (1/3) ... [2021-08-26 01:30:04,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5665412c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:04, skipping insertion in model container [2021-08-26 01:30:04,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:03" (2/3) ... [2021-08-26 01:30:04,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5665412c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:04, skipping insertion in model container [2021-08-26 01:30:04,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:04" (3/3) ... [2021-08-26 01:30:04,155 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2021-08-26 01:30:04,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:30:04,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:30:04,188 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:30:04,193 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 01:30:04,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:30:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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 01:30:04,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:30:04,213 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:04,213 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:04,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:04,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-08-26 01:30:04,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:30:04,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843528302] [2021-08-26 01:30:04,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:04,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:30:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:30:04,368 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 01:30:04,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:30:04,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843528302] [2021-08-26 01:30:04,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843528302] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:30:04,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:30:04,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:30:04,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079916593] [2021-08-26 01:30:04,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:30:04,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:30:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:30:04,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:30:04,388 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 01:30:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:30:04,418 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-08-26 01:30:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:30:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-08-26 01:30:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:30:04,427 INFO L225 Difference]: With dead ends: 227 [2021-08-26 01:30:04,427 INFO L226 Difference]: Without dead ends: 111 [2021-08-26 01:30:04,430 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 01:30:04,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-08-26 01:30:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-08-26 01:30:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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 01:30:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-08-26 01:30:04,468 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-08-26 01:30:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:30:04,468 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-08-26 01:30:04,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 01:30:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-08-26 01:30:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 01:30:04,469 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:04,469 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:04,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:30:04,470 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:04,471 INFO L82 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-08-26 01:30:04,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:30:04,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340549005] [2021-08-26 01:30:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:04,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:30:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:30:04,508 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:30:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:30:04,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:30:04,565 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:30:04,567 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:30:04,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:30:04,572 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:30:04,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:30:04 BoogieIcfgContainer [2021-08-26 01:30:04,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:30:04,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:30:04,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:30:04,594 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:30:04,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:04" (3/4) ... [2021-08-26 01:30:04,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:30:04,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:30:04,597 INFO L168 Benchmark]: Toolchain (without parser) took 1459.97 ms. Allocated memory was 52.4 MB in the beginning and 86.0 MB in the end (delta: 33.6 MB). Free memory was 29.9 MB in the beginning and 47.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:04,598 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:30:04,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.99 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.6 MB in the beginning and 50.4 MB in the end (delta: -20.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:04,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.25 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 46.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:04,599 INFO L168 Benchmark]: Boogie Preprocessor took 34.94 ms. Allocated memory is still 69.2 MB. Free memory was 46.8 MB in the beginning and 43.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:04,599 INFO L168 Benchmark]: RCFGBuilder took 617.14 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 47.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:04,600 INFO L168 Benchmark]: TraceAbstraction took 442.01 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 47.5 MB in the end (delta: -375.9 kB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:04,600 INFO L168 Benchmark]: Witness Printer took 2.67 ms. Allocated memory is still 86.0 MB. Free memory was 47.5 MB in the beginning and 47.3 MB in the end (delta: 230.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:30:04,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.99 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.6 MB in the beginning and 50.4 MB in the end (delta: -20.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.25 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 46.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.94 ms. Allocated memory is still 69.2 MB. Free memory was 46.8 MB in the beginning and 43.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 617.14 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 47.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 442.01 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 47.5 MB in the end (delta: -375.9 kB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.67 ms. Allocated memory is still 86.0 MB. Free memory was 47.5 MB in the beginning and 47.3 MB in the end (delta: 230.2 kB). 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: 262]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. 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] [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE 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] [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 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] [L262] 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, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 384.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.5ms, AutomataDifference: 54.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 164 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.8ms SsaConstructionTime, 71.4ms SatisfiabilityAnalysisTime, 51.4ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:30:04,641 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 01:30:07,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:30:07,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:30:07,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:30:07,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:30:07,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:30:07,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:30:07,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:30:07,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:30:07,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:30:07,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:30:07,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:30:07,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:30:07,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:30:07,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:30:07,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:30:07,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:30:07,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:30:07,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:30:07,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:30:07,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:30:07,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:30:07,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:30:07,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:30:07,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:30:07,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:30:07,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:30:07,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:30:07,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:30:07,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:30:07,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:30:07,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:30:07,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:30:07,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:30:07,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:30:07,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:30:07,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:30:07,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:30:07,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:30:07,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:30:07,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:30:07,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:30:07,352 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:30:07,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:30:07,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:30:07,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:30:07,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:30:07,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:30:07,355 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:30:07,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:30:07,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:30:07,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:30:07,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:30:07,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:30:07,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:30:07,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:30:07,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:30:07,357 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:30:07,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:30:07,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:30:07,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:30:07,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:30:07,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:30:07,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:30:07,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:30:07,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:07,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:30:07,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:30:07,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:30:07,359 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:30:07,359 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:30:07,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:30:07,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:30:07,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:30:07,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 [2021-08-26 01:30:07,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:30:07,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:30:07,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:30:07,662 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:30:07,663 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:30:07,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-08-26 01:30:07,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a269d6d8/3cbce6951ffa401887ffa2617164440d/FLAG48459ba2f [2021-08-26 01:30:08,032 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:30:08,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-08-26 01:30:08,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a269d6d8/3cbce6951ffa401887ffa2617164440d/FLAG48459ba2f [2021-08-26 01:30:08,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a269d6d8/3cbce6951ffa401887ffa2617164440d [2021-08-26 01:30:08,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:30:08,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:30:08,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:08,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:30:08,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:30:08,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eccf09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08, skipping insertion in model container [2021-08-26 01:30:08,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:30:08,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:30:08,675 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_0662b.c[6224,6237] [2021-08-26 01:30:08,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:08,743 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:30:08,803 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_0662b.c[6224,6237] [2021-08-26 01:30:08,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:08,836 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:30:08,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08 WrapperNode [2021-08-26 01:30:08,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:08,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:08,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:30:08,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:30:08,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:08,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:30:08,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:30:08,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:30:08,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:30:08,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:30:08,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:30:08,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:30:08,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (1/1) ... [2021-08-26 01:30:08,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:08,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:30:08,941 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 01:30:08,959 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 01:30:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:30:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:30:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:30:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:30:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-08-26 01:30:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:30:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:30:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:30:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:30:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:30:51,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:30:51,970 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-08-26 01:30:51,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:51 BoogieIcfgContainer [2021-08-26 01:30:51,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:30:51,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:30:51,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:30:51,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:30:51,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:30:08" (1/3) ... [2021-08-26 01:30:51,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e04db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:51, skipping insertion in model container [2021-08-26 01:30:51,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:08" (2/3) ... [2021-08-26 01:30:51,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e04db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:51, skipping insertion in model container [2021-08-26 01:30:51,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:51" (3/3) ... [2021-08-26 01:30:51,978 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2021-08-26 01:30:51,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:30:51,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:30:52,008 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:30:52,012 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 01:30:52,012 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:30:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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 01:30:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:30:52,025 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:52,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:52,025 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:52,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-08-26 01:30:52,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:30:52,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640873208] [2021-08-26 01:30:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:52,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:30:52,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:30:52,046 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 01:30:52,047 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 01:30:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:30:52,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:30:52,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:30:52,690 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 01:30:52,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:30:52,971 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 01:30:52,972 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:30:52,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640873208] [2021-08-26 01:30:52,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640873208] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:30:52,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:30:52,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:30:52,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540842503] [2021-08-26 01:30:52,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:30:52,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:30:52,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:30:52,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:30:52,986 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 01:30:53,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:30:53,004 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-08-26 01:30:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:30:53,005 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-08-26 01:30:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:30:53,011 INFO L225 Difference]: With dead ends: 227 [2021-08-26 01:30:53,011 INFO L226 Difference]: Without dead ends: 111 [2021-08-26 01:30:53,013 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 01:30:53,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-08-26 01:30:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-08-26 01:30:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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 01:30:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-08-26 01:30:53,039 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-08-26 01:30:53,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:30:53,040 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-08-26 01:30:53,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 01:30:53,040 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-08-26 01:30:53,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 01:30:53,041 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:53,041 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:53,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:30:53,258 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 01:30:53,258 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:53,259 INFO L82 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-08-26 01:30:53,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:30:53,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034713238] [2021-08-26 01:30:53,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:53,260 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:30:53,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:30:53,261 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 01:30:53,263 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 01:30:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:30:53,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-26 01:30:53,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:30:54,711 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 01:30:58,742 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:30:58,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-08-26 01:30:59,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-26 01:31:05,164 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 01:31:05,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:10,585 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:31:10,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034713238] [2021-08-26 01:31:10,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:10,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1550090604] [2021-08-26 01:31:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:10,586 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 01:31:10,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 01:31:10,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 01:31:10,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-08-26 01:31:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:12,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-26 01:31:12,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:12,927 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 01:31:15,462 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:31:15,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-08-26 01:31:15,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-26 01:31:17,549 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 01:31:17,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:20,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:20,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996618978] [2021-08-26 01:31:20,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:20,587 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 01:31:20,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:31:20,589 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 01:31:20,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-26 01:31:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:20,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-26 01:31:20,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:21,100 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 01:31:23,703 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:31:23,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-08-26 01:31:24,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-26 01:31:25,893 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 01:31:25,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:28,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:28,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:31:28,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-26 01:31:28,890 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-26 01:31:28,890 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-26 01:31:28,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:31:28,911 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 01:31:29,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:31:29,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-08-26 01:31:29,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-26 01:31:29,525 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:31:29,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:31:29 BoogieIcfgContainer [2021-08-26 01:31:29,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:31:29,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:31:29,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:31:29,545 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:31:29,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:51" (3/4) ... [2021-08-26 01:31:29,547 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:31:29,547 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:31:29,549 INFO L168 Benchmark]: Toolchain (without parser) took 81099.94 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 37.3 MB in the beginning and 32.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:29,549 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.4 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:29,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.33 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 33.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:29,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 54.5 MB. Free memory was 33.8 MB in the beginning and 30.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:29,555 INFO L168 Benchmark]: Boogie Preprocessor took 33.81 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 27.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:29,556 INFO L168 Benchmark]: RCFGBuilder took 43052.33 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.8 MB in the beginning and 46.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:29,556 INFO L168 Benchmark]: TraceAbstraction took 37569.24 ms. Allocated memory is still 67.1 MB. Free memory was 45.9 MB in the beginning and 32.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:29,556 INFO L168 Benchmark]: Witness Printer took 3.38 ms. Allocated memory is still 67.1 MB. Free memory was 32.9 MB in the beginning and 32.5 MB in the end (delta: 450.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:29,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.4 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.33 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 33.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 54.5 MB. Free memory was 33.8 MB in the beginning and 30.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.81 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 27.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 43052.33 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.8 MB in the beginning and 46.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37569.24 ms. Allocated memory is still 67.1 MB. Free memory was 45.9 MB in the beginning and 32.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.38 ms. Allocated memory is still 67.1 MB. Free memory was 32.9 MB in the beginning and 32.5 MB in the end (delta: 450.1 kB). 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: 262]: 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; [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE 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; [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 [L262] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37517.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.8ms, AutomataDifference: 36.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 164 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.9ms SsaConstructionTime, 217.9ms SatisfiabilityAnalysisTime, 585.1ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 1 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 01:31:29,778 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 01:31:29,854 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...