./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 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_0920a.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 77b3a373bd5532f9284ea33fd7b532cf320a99fa ................................................................................................................................................................................................................................................................................................................................................................ 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_0920a.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 77b3a373bd5532f9284ea33fd7b532cf320a99fa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 01:05:52,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:05:52,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:05:52,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 01:05:52,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 01:05:52,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 01:05:52,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 01:05:52,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 01:05:52,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 01:05:52,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 01:05:52,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 01:05:52,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 01:05:52,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:05:52,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:05:52,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:05:52,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:05:52,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:05:52,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:05:52,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:05:52,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:05:52,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:05:52,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:05:52,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:05:52,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:05:52,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 01:05:52,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 01:05:52,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 01:05:52,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 01:05:52,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 01:05:52,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 01:05:52,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:05:52,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:05:52,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:05:52,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:05:52,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:05:52,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:05:52,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:05:52,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:05:52,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:05:52,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:05:52,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:05:52,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-03 01:05:52,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:05:52,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:05:52,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:05:52,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:05:52,596 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:05:52,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:05:52,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:05:52,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 01:05:52,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:05:52,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:05:52,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:05:52,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:05:52,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:05:52,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:05:52,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:05:52,599 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:05:52,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:05:52,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:05:52,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:05:52,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:05:52,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:05:52,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:05:52,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:05:52,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:05:52,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-03 01:05:52,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 01:05:52,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:05:52,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:05:52,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa [2020-12-03 01:05:53,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:05:53,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:05:53,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:05:53,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:05:53,119 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:05:53,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2020-12-03 01:05:53,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb30bd912/d34e9ab3bd7b4697bea8ee0b92eb6aeb/FLAG39f80f058 [2020-12-03 01:05:53,904 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:05:53,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2020-12-03 01:05:53,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb30bd912/d34e9ab3bd7b4697bea8ee0b92eb6aeb/FLAG39f80f058 [2020-12-03 01:05:54,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb30bd912/d34e9ab3bd7b4697bea8ee0b92eb6aeb [2020-12-03 01:05:54,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:05:54,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:05:54,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:05:54,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:05:54,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:05:54,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a04b33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54, skipping insertion in model container [2020-12-03 01:05:54,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:05:54,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:05:54,521 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2020-12-03 01:05:54,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:05:54,548 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 01:05:54,605 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2020-12-03 01:05:54,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:05:54,649 INFO L208 MainTranslator]: Completed translation [2020-12-03 01:05:54,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54 WrapperNode [2020-12-03 01:05:54,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 01:05:54,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 01:05:54,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 01:05:54,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 01:05:54,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 01:05:54,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 01:05:54,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 01:05:54,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 01:05:54,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... [2020-12-03 01:05:54,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 01:05:54,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 01:05:54,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 01:05:54,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 01:05:54,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:05:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 01:05:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 01:05:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-03 01:05:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 01:05:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-03 01:05:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 01:05:54,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 01:05:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 01:05:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 01:05:55,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 01:05:55,447 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-03 01:05:55,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:55 BoogieIcfgContainer [2020-12-03 01:05:55,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 01:05:55,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 01:05:55,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 01:05:55,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 01:05:55,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:05:54" (1/3) ... [2020-12-03 01:05:55,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2872fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:05:55, skipping insertion in model container [2020-12-03 01:05:55,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:54" (2/3) ... [2020-12-03 01:05:55,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2872fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:05:55, skipping insertion in model container [2020-12-03 01:05:55,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:55" (3/3) ... [2020-12-03 01:05:55,459 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2020-12-03 01:05:55,477 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 01:05:55,482 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 01:05:55,496 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 01:05:55,526 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 01:05:55,526 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 01:05:55,526 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 01:05:55,527 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 01:05:55,527 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 01:05:55,527 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 01:05:55,527 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 01:05:55,527 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 01:05:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-12-03 01:05:55,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 01:05:55,550 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:05:55,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:05:55,551 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:05:55,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:05:55,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2020-12-03 01:05:55,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 01:05:55,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067874179] [2020-12-03 01:05:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 01:05:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:05:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:05:55,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067874179] [2020-12-03 01:05:55,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:05:55,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 01:05:55,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205409107] [2020-12-03 01:05:55,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 01:05:55,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-03 01:05:55,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 01:05:55,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:05:55,787 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2020-12-03 01:05:55,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:05:55,807 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2020-12-03 01:05:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 01:05:55,811 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-03 01:05:55,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:05:55,824 INFO L225 Difference]: With dead ends: 69 [2020-12-03 01:05:55,824 INFO L226 Difference]: Without dead ends: 32 [2020-12-03 01:05:55,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:05:55,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-03 01:05:55,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-03 01:05:55,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-03 01:05:55,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2020-12-03 01:05:55,874 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2020-12-03 01:05:55,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:05:55,875 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-12-03 01:05:55,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 01:05:55,875 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2020-12-03 01:05:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 01:05:55,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:05:55,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:05:55,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 01:05:55,877 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:05:55,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:05:55,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2020-12-03 01:05:55,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 01:05:55,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055515567] [2020-12-03 01:05:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 01:05:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:05:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:05:55,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055515567] [2020-12-03 01:05:56,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:05:56,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 01:05:56,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163853165] [2020-12-03 01:05:56,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 01:05:56,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-03 01:05:56,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 01:05:56,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 01:05:56,005 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2020-12-03 01:05:56,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:05:56,045 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2020-12-03 01:05:56,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 01:05:56,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-03 01:05:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:05:56,049 INFO L225 Difference]: With dead ends: 57 [2020-12-03 01:05:56,050 INFO L226 Difference]: Without dead ends: 32 [2020-12-03 01:05:56,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 01:05:56,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-03 01:05:56,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-03 01:05:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-03 01:05:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2020-12-03 01:05:56,061 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2020-12-03 01:05:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:05:56,062 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2020-12-03 01:05:56,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 01:05:56,062 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2020-12-03 01:05:56,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 01:05:56,063 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:05:56,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:05:56,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 01:05:56,063 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:05:56,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:05:56,064 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2020-12-03 01:05:56,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 01:05:56,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338194931] [2020-12-03 01:05:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 01:05:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 01:05:56,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 01:05:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 01:05:56,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 01:05:56,296 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-03 01:05:56,299 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 01:05:56,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 01:05:56,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 01:05:56 BoogieIcfgContainer [2020-12-03 01:05:56,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 01:05:56,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 01:05:56,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 01:05:56,390 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 01:05:56,390 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:55" (3/4) ... [2020-12-03 01:05:56,394 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-03 01:05:56,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 01:05:56,397 INFO L168 Benchmark]: Toolchain (without parser) took 2184.78 ms. Allocated memory was 41.9 MB in the beginning and 67.1 MB in the end (delta: 25.2 MB). Free memory was 18.4 MB in the beginning and 40.8 MB in the end (delta: -22.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:56,398 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 20.0 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:05:56,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.08 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 18.2 MB in the beginning and 29.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:56,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.02 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 27.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:56,401 INFO L168 Benchmark]: Boogie Preprocessor took 82.86 ms. Allocated memory is still 54.5 MB. Free memory was 27.4 MB in the beginning and 25.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:56,401 INFO L168 Benchmark]: RCFGBuilder took 626.20 ms. Allocated memory is still 54.5 MB. Free memory was 25.7 MB in the beginning and 30.2 MB in the end (delta: -4.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:56,403 INFO L168 Benchmark]: TraceAbstraction took 937.51 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.7 MB in the beginning and 41.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:56,403 INFO L168 Benchmark]: Witness Printer took 4.94 ms. Allocated memory is still 67.1 MB. Free memory was 41.1 MB in the beginning and 40.8 MB in the end (delta: 335.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:05:56,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 20.0 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.08 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 18.2 MB in the beginning and 29.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.02 ms. Allocated memory is still 54.5 MB. Free memory was 29.5 MB in the beginning and 27.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.86 ms. Allocated memory is still 54.5 MB. Free memory was 27.4 MB in the beginning and 25.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 626.20 ms. Allocated memory is still 54.5 MB. Free memory was 25.7 MB in the beginning and 30.2 MB in the end (delta: -4.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 937.51 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.7 MB in the beginning and 41.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.94 ms. Allocated memory is still 67.1 MB. Free memory was 41.1 MB in the beginning and 40.8 MB in the end (delta: 335.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseAnd at line 135, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] double x = __VERIFIER_nondet_double(); [L150] EXPR x < 0 && isfinite_double(x) [L129] __int32_t hx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L131] ieee_double_shape_type gh_u; [L132] gh_u.value = (x) [L133] EXPR gh_u.parts.msw [L133] (hx) = gh_u.parts.msw [L135] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L150] EXPR x < 0 && isfinite_double(x) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L150] COND TRUE (x < 0 && isfinite_double(x)) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L73] COND TRUE hx >= 0x7ff00000 [L74] return x + x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L152] double res = __ieee754_log(x); [L139] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L155] COND TRUE !isnan_double(res) [L156] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-03 01:05:59,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:05:59,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:05:59,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 01:05:59,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 01:05:59,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 01:05:59,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 01:05:59,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 01:05:59,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 01:05:59,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 01:05:59,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 01:05:59,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 01:05:59,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:05:59,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:05:59,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:05:59,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:05:59,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:05:59,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:05:59,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:05:59,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:05:59,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:05:59,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:05:59,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:05:59,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:05:59,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 01:05:59,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 01:05:59,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 01:05:59,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 01:05:59,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 01:05:59,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 01:05:59,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:05:59,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:05:59,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:05:59,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:05:59,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:05:59,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:05:59,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:05:59,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:05:59,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:05:59,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:05:59,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:05:59,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-03 01:05:59,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:05:59,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:05:59,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:05:59,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:05:59,375 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:05:59,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:05:59,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:05:59,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:05:59,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:05:59,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:05:59,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:05:59,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:05:59,378 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 01:05:59,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 01:05:59,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:05:59,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:05:59,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:05:59,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:05:59,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:05:59,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:05:59,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:05:59,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:05:59,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:05:59,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:05:59,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:05:59,382 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-03 01:05:59,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 01:05:59,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:05:59,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:05:59,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 01:05:59,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa [2020-12-03 01:05:59,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:05:59,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:05:59,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:05:59,865 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:05:59,866 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:05:59,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2020-12-03 01:05:59,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5173f07/3ddd3622ab7245fabcc4a75f5d1a16a9/FLAG4489590c9 [2020-12-03 01:06:00,686 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:06:00,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2020-12-03 01:06:00,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5173f07/3ddd3622ab7245fabcc4a75f5d1a16a9/FLAG4489590c9 [2020-12-03 01:06:01,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5173f07/3ddd3622ab7245fabcc4a75f5d1a16a9 [2020-12-03 01:06:01,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:06:01,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:06:01,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:06:01,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:06:01,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:06:01,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6451333a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01, skipping insertion in model container [2020-12-03 01:06:01,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:06:01,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:06:01,331 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2020-12-03 01:06:01,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:06:01,350 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 01:06:01,409 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020] [2020-12-03 01:06:01,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:06:01,435 INFO L208 MainTranslator]: Completed translation [2020-12-03 01:06:01,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01 WrapperNode [2020-12-03 01:06:01,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 01:06:01,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 01:06:01,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 01:06:01,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 01:06:01,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 01:06:01,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 01:06:01,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 01:06:01,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 01:06:01,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... [2020-12-03 01:06:01,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 01:06:01,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 01:06:01,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 01:06:01,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 01:06:01,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:06:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-03 01:06:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-03 01:06:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 01:06:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 01:06:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-03 01:06:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 01:06:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 01:06:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-03 01:06:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 01:06:28,621 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 01:06:28,622 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-03 01:06:28,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:28 BoogieIcfgContainer [2020-12-03 01:06:28,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 01:06:28,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 01:06:28,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 01:06:28,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 01:06:28,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:06:01" (1/3) ... [2020-12-03 01:06:28,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc1149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:06:28, skipping insertion in model container [2020-12-03 01:06:28,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:01" (2/3) ... [2020-12-03 01:06:28,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc1149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:06:28, skipping insertion in model container [2020-12-03 01:06:28,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:28" (3/3) ... [2020-12-03 01:06:28,633 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2020-12-03 01:06:28,652 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 01:06:28,657 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 01:06:28,669 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 01:06:28,695 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 01:06:28,695 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 01:06:28,695 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 01:06:28,696 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 01:06:28,696 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 01:06:28,696 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 01:06:28,696 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 01:06:28,696 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 01:06:28,712 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-12-03 01:06:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 01:06:28,718 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:28,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:28,719 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:28,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:28,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2020-12-03 01:06:28,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:28,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450776307] [2020-12-03 01:06:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:29,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-03 01:06:29,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:29,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:29,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450776307] [2020-12-03 01:06:29,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:29,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 01:06:29,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845640096] [2020-12-03 01:06:29,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 01:06:29,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:29,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 01:06:29,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:06:29,081 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2020-12-03 01:06:29,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:29,103 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2020-12-03 01:06:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 01:06:29,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-03 01:06:29,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:29,118 INFO L225 Difference]: With dead ends: 69 [2020-12-03 01:06:29,118 INFO L226 Difference]: Without dead ends: 32 [2020-12-03 01:06:29,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:06:29,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-03 01:06:29,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-03 01:06:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-03 01:06:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2020-12-03 01:06:29,162 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2020-12-03 01:06:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:29,162 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-12-03 01:06:29,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 01:06:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2020-12-03 01:06:29,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 01:06:29,164 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:29,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:29,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 01:06:29,371 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:29,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:29,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2020-12-03 01:06:29,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:29,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536912752] [2020-12-03 01:06:29,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:29,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-03 01:06:29,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:29,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:29,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536912752] [2020-12-03 01:06:29,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:29,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 01:06:29,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889179756] [2020-12-03 01:06:29,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 01:06:29,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:29,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 01:06:29,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 01:06:29,661 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2020-12-03 01:06:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:29,781 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2020-12-03 01:06:29,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 01:06:29,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-03 01:06:29,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:29,783 INFO L225 Difference]: With dead ends: 57 [2020-12-03 01:06:29,783 INFO L226 Difference]: Without dead ends: 32 [2020-12-03 01:06:29,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 01:06:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-03 01:06:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-03 01:06:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-03 01:06:29,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2020-12-03 01:06:29,791 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2020-12-03 01:06:29,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:29,791 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2020-12-03 01:06:29,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 01:06:29,792 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2020-12-03 01:06:29,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 01:06:29,793 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:29,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:30,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 01:06:30,010 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:30,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:30,012 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2020-12-03 01:06:30,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:30,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481850159] [2020-12-03 01:06:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:30,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-03 01:06:30,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:30,772 WARN L197 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-03 01:06:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:31,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:31,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481850159] [2020-12-03 01:06:31,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:31,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 01:06:31,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350632917] [2020-12-03 01:06:31,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 01:06:31,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:31,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 01:06:31,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-03 01:06:31,371 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand 6 states. [2020-12-03 01:06:32,002 WARN L197 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2020-12-03 01:06:32,269 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-03 01:06:32,538 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-03 01:06:38,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:38,385 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2020-12-03 01:06:38,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 01:06:38,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-03 01:06:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:38,418 INFO L225 Difference]: With dead ends: 37 [2020-12-03 01:06:38,419 INFO L226 Difference]: Without dead ends: 19 [2020-12-03 01:06:38,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-03 01:06:38,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-03 01:06:38,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-03 01:06:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-03 01:06:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-03 01:06:38,429 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2020-12-03 01:06:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:38,430 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-03 01:06:38,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 01:06:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-03 01:06:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 01:06:38,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:38,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:38,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 01:06:38,633 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:38,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:38,634 INFO L82 PathProgramCache]: Analyzing trace with hash -677236169, now seen corresponding path program 1 times [2020-12-03 01:06:38,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:38,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704039339] [2020-12-03 01:06:38,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:39,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-03 01:06:39,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:40,107 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-03 01:06:40,562 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-03 01:06:40,615 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 01:06:40,658 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:40,659 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 01:06:40,829 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-03 01:06:40,829 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:40,833 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-03 01:06:40,833 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:20 [2020-12-03 01:06:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:41,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:41,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704039339] [2020-12-03 01:06:41,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:41,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 01:06:41,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087842530] [2020-12-03 01:06:41,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 01:06:41,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:41,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 01:06:41,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-03 01:06:41,153 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2020-12-03 01:06:41,949 WARN L197 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2020-12-03 01:06:42,218 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-03 01:06:42,512 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-03 01:06:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:45,288 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-12-03 01:06:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 01:06:45,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-03 01:06:45,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:45,460 INFO L225 Difference]: With dead ends: 24 [2020-12-03 01:06:45,460 INFO L226 Difference]: Without dead ends: 19 [2020-12-03 01:06:45,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-03 01:06:45,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-03 01:06:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-03 01:06:45,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-03 01:06:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-12-03 01:06:45,464 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2020-12-03 01:06:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:45,465 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-12-03 01:06:45,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 01:06:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-12-03 01:06:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-03 01:06:45,466 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:45,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:45,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-03 01:06:45,670 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:45,671 INFO L82 PathProgramCache]: Analyzing trace with hash 471217663, now seen corresponding path program 1 times [2020-12-03 01:06:45,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:45,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412800615] [2020-12-03 01:06:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:46,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-03 01:06:46,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:47,414 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:48,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:48,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412800615] [2020-12-03 01:06:48,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:48,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 01:06:48,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835340173] [2020-12-03 01:06:48,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 01:06:48,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:48,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 01:06:48,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-03 01:06:48,591 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 6 states. [2020-12-03 01:06:53,126 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 01:06:54,539 WARN L197 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-03 01:06:54,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:54,540 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-12-03 01:06:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 01:06:54,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-03 01:06:54,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:54,541 INFO L225 Difference]: With dead ends: 19 [2020-12-03 01:06:54,541 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 01:06:54,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-03 01:06:54,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 01:06:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 01:06:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 01:06:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 01:06:54,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-03 01:06:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:54,543 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 01:06:54,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 01:06:54,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 01:06:54,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 01:06:54,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-03 01:06:54,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 01:06:55,018 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-03 01:06:55,965 WARN L197 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 01:06:56,164 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:06:56,344 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-03 01:06:56,539 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-03 01:06:56,542 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-12-03 01:06:56,542 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-12-03 01:06:56,542 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-12-03 01:06:56,542 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log_~x ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2020-12-03 01:06:56,542 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-12-03 01:06:56,542 INFO L258 CegarLoopResult]: At program point L135(lines 128 136) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short16| (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2020-12-03 01:06:56,543 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 01:06:56,543 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-12-03 01:06:56,543 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-03 01:06:56,543 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-12-03 01:06:56,543 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-12-03 01:06:56,543 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-12-03 01:06:56,543 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-12-03 01:06:56,543 INFO L265 CegarLoopResult]: At program point L161(lines 141 162) the Hoare annotation is: true [2020-12-03 01:06:56,543 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L258 CegarLoopResult]: At program point L130-2(lines 130 134) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short16| (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2020-12-03 01:06:56,544 INFO L262 CegarLoopResult]: For program point L155(lines 155 158) no Hoare annotation was computed. [2020-12-03 01:06:56,545 INFO L258 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_log_~x (_ FloatingPoint 11 53))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log_~x ULTIMATE.start___ieee754_log_~x) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-12-03 01:06:56,545 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-03 01:06:56,545 INFO L262 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-12-03 01:06:56,545 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2020-12-03 01:06:56,545 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-12-03 01:06:56,545 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 01:06:56,545 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (exists ((ULTIMATE.start___ieee754_log_~x (_ FloatingPoint 11 53))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log_~x ULTIMATE.start___ieee754_log_~x) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) [2020-12-03 01:06:56,545 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-12-03 01:06:56,545 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-12-03 01:06:56,546 INFO L262 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-12-03 01:06:56,546 INFO L262 CegarLoopResult]: For program point L150-2(lines 150 159) no Hoare annotation was computed. [2020-12-03 01:06:56,546 INFO L262 CegarLoopResult]: For program point L150-4(lines 150 159) no Hoare annotation was computed. [2020-12-03 01:06:56,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,558 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,566 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,566 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,566 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,566 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 01:06:56 BoogieIcfgContainer [2020-12-03 01:06:56,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 01:06:56,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 01:06:56,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 01:06:56,575 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 01:06:56,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:28" (3/4) ... [2020-12-03 01:06:56,579 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 01:06:56,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-03 01:06:56,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-03 01:06:56,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 01:06:56,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 01:06:56,643 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2020-12-03 01:06:56,643 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2020-12-03 01:06:56,643 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2020-12-03 01:06:56,645 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) [2020-12-03 01:06:56,646 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result [2020-12-03 01:06:56,730 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-03 01:06:56,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 01:06:56,732 INFO L168 Benchmark]: Toolchain (without parser) took 55715.19 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 32.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-12-03 01:06:56,732 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 44.0 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:06:56,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.18 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.4 MB in the beginning and 36.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-03 01:06:56,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 34.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:06:56,733 INFO L168 Benchmark]: Boogie Preprocessor took 54.23 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 32.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:06:56,734 INFO L168 Benchmark]: RCFGBuilder took 27021.82 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 35.9 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-03 01:06:56,735 INFO L168 Benchmark]: TraceAbstraction took 27948.77 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 20.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-12-03 01:06:56,735 INFO L168 Benchmark]: Witness Printer took 156.14 ms. Allocated memory is still 54.5 MB. Free memory was 20.7 MB in the beginning and 32.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:06:56,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 44.0 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 418.18 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.4 MB in the beginning and 36.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 34.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.23 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 32.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 27021.82 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 35.9 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27948.77 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 20.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * Witness Printer took 156.14 ms. Allocated memory is still 54.5 MB. Free memory was 20.7 MB in the beginning and 32.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 156]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 130]: Loop Invariant [2020-12-03 01:06:56,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,753 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 139]: Loop Invariant [2020-12-03 01:06:56,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2020-12-03 01:06:56,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] [2020-12-03 01:06:56,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___ieee754_log_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log_~x, ULTIMATE.start___ieee754_log_~x), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant [2020-12-03 01:06:56,767 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,770 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,771 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && zero == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 52]: Loop Invariant [2020-12-03 01:06:56,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:06:56,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:06:56,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 17.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 36 SDslu, 137 SDs, 0 SdLazy, 42 SolverSat, 1 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 74 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 22 QuantifiedInterpolants, 6209 SizeOfPredicates, 23 NumberOfNonLiveVariables, 334 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...