./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0490a.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_0490a.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4cd7167e4c5d704bd032daefd453bfeb73829b6b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_0490a.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4cd7167e4c5d704bd032daefd453bfeb73829b6b .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:34:14,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:34:14,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:34:14,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:34:14,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:34:14,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:34:14,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:34:14,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:34:14,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:34:14,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:34:14,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:34:14,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:34:14,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:34:14,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:34:14,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:34:14,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:34:14,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:34:14,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:34:14,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:34:14,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:34:14,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:34:14,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:34:14,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:34:14,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:34:14,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:34:14,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:34:14,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:34:14,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:34:14,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:34:14,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:34:14,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:34:14,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:34:14,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:34:14,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:34:14,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:34:14,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:34:14,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:34:14,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:34:14,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:34:14,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:34:14,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:34:14,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:34:14,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:34:14,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:34:14,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:34:14,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:34:14,547 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:34:14,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:34:14,548 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:34:14,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:34:14,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:34:14,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:34:14,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:34:14,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:34:14,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:34:14,550 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:34:14,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:34:14,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:34:14,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:34:14,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:34:14,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:34:14,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:34:14,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:34:14,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:34:14,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:34:14,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:34:14,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:34:14,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:34:14,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:34:14,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:34:14,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:34:14,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 4cd7167e4c5d704bd032daefd453bfeb73829b6b [2020-07-28 17:34:14,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:34:14,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:34:14,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:34:14,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:34:14,888 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:34:14,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0490a.c [2020-07-28 17:34:14,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58be2396/0ce9d691f12c46fc85839a2eb101b2aa/FLAG3ea50d02b [2020-07-28 17:34:15,525 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:34:15,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0490a.c [2020-07-28 17:34:15,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58be2396/0ce9d691f12c46fc85839a2eb101b2aa/FLAG3ea50d02b [2020-07-28 17:34:15,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58be2396/0ce9d691f12c46fc85839a2eb101b2aa [2020-07-28 17:34:15,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:34:15,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:34:15,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:34:15,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:34:15,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:34:15,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:34:15" (1/1) ... [2020-07-28 17:34:15,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53104d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:15, skipping insertion in model container [2020-07-28 17:34:15,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:34:15" (1/1) ... [2020-07-28 17:34:15,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:34:15,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:34:16,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:34:16,298 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:34:16,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:34:16,553 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:34:16,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16 WrapperNode [2020-07-28 17:34:16,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:34:16,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:34:16,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:34:16,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:34:16,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:34:16,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:34:16,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:34:16,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:34:16,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (1/1) ... [2020-07-28 17:34:16,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:34:16,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:34:16,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:34:16,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:34:16,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (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 [2020-07-28 17:34:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:34:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:34:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:34:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:34:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:34:16,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:34:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:34:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:34:17,904 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:34:17,904 INFO L295 CfgBuilder]: Removed 34 assume(true) statements. [2020-07-28 17:34:17,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:34:17 BoogieIcfgContainer [2020-07-28 17:34:17,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:34:17,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:34:17,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:34:17,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:34:17,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:34:15" (1/3) ... [2020-07-28 17:34:17,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122d16c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:34:17, skipping insertion in model container [2020-07-28 17:34:17,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:16" (2/3) ... [2020-07-28 17:34:17,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122d16c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:34:17, skipping insertion in model container [2020-07-28 17:34:17,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:34:17" (3/3) ... [2020-07-28 17:34:17,921 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0490a.c [2020-07-28 17:34:17,932 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:34:17,940 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:34:17,956 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:34:17,983 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:34:17,983 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:34:17,984 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:34:17,984 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:34:17,984 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:34:17,984 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:34:17,985 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:34:17,985 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:34:18,004 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2020-07-28 17:34:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:34:18,012 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:34:18,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:34:18,014 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:34:18,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:34:18,021 INFO L82 PathProgramCache]: Analyzing trace with hash 2057048347, now seen corresponding path program 1 times [2020-07-28 17:34:18,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:34:18,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896770413] [2020-07-28 17:34:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:34:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:34:18,194 INFO L280 TraceCheckUtils]: 0: Hoare triple {107#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_floor~0 := 1.0E300;~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-300;~one_acos~0 := 1.0;~pi~0 := 3.141592653589793;~pio2_hi_acos~0 := 1.5707963267948966;~pio2_lo_acos~0 := 6.123233995736766E-17;~pS0_acos~0 := 0.16666666666666666;~pS1_acos~0 := ~someUnaryDOUBLEoperation(0.3255658186224009);~pS2_acos~0 := 0.20121253213486293;~pS3_acos~0 := ~someUnaryDOUBLEoperation(0.04005553450067941);~pS4_acos~0 := 7.915349942898145E-4;~pS5_acos~0 := 3.479331075960212E-5;~qS1_acos~0 := ~someUnaryDOUBLEoperation(2.403394911734414);~qS2_acos~0 := 2.0209457602335057;~qS3_acos~0 := ~someUnaryDOUBLEoperation(0.6882839716054533);~qS4_acos~0 := 0.07703815055590194; {107#true} is VALID [2020-07-28 17:34:18,195 INFO L280 TraceCheckUtils]: 1: Hoare triple {107#true} havoc main_#res;havoc main_#t~ret34, main_#t~ret35, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticDOUBLEoperation(1.0, 0.0);__ieee754_acos_#in~x := main_~x~0;havoc __ieee754_acos_#res;havoc __ieee754_acos_#t~mem26, __ieee754_acos_#t~union27, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, __ieee754_acos_#t~mem28, __ieee754_acos_#t~union29, __ieee754_acos_~#gl_u~0.base, __ieee754_acos_~#gl_u~0.offset, __ieee754_acos_~lx~1, __ieee754_acos_#t~ret30, __ieee754_acos_#t~ret31, __ieee754_acos_#t~mem32, __ieee754_acos_#t~union33.lsw, __ieee754_acos_#t~union33.msw, __ieee754_acos_~#sl_u~0.base, __ieee754_acos_~#sl_u~0.offset, __ieee754_acos_~x, __ieee754_acos_~z~1, __ieee754_acos_~p~0, __ieee754_acos_~q~1, __ieee754_acos_~r~1, __ieee754_acos_~w~0, __ieee754_acos_~s~0, __ieee754_acos_~c~0, __ieee754_acos_~df~0, __ieee754_acos_~hx~2, __ieee754_acos_~ix~0;__ieee754_acos_~x := __ieee754_acos_#in~x;havoc __ieee754_acos_~z~1;havoc __ieee754_acos_~p~0;havoc __ieee754_acos_~q~1;havoc __ieee754_acos_~r~1;havoc __ieee754_acos_~w~0;havoc __ieee754_acos_~s~0;havoc __ieee754_acos_~c~0;havoc __ieee754_acos_~df~0;havoc __ieee754_acos_~hx~2;havoc __ieee754_acos_~ix~0; {107#true} is VALID [2020-07-28 17:34:18,196 INFO L280 TraceCheckUtils]: 2: Hoare triple {107#true} assume !true; {108#false} is VALID [2020-07-28 17:34:18,196 INFO L280 TraceCheckUtils]: 3: Hoare triple {108#false} __ieee754_acos_~ix~0 := ~bitwiseAnd(__ieee754_acos_~hx~2, 2147483647); {108#false} is VALID [2020-07-28 17:34:18,197 INFO L280 TraceCheckUtils]: 4: Hoare triple {108#false} assume __ieee754_acos_~ix~0 >= 1072693248;havoc __ieee754_acos_~lx~1; {108#false} is VALID [2020-07-28 17:34:18,197 INFO L280 TraceCheckUtils]: 5: Hoare triple {108#false} assume !true; {108#false} is VALID [2020-07-28 17:34:18,198 INFO L280 TraceCheckUtils]: 6: Hoare triple {108#false} assume !(0 == ~bitwiseOr(__ieee754_acos_~ix~0 - 1072693248, __ieee754_acos_~lx~1) % 4294967296);__ieee754_acos_#res := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~x, __ieee754_acos_~x), ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~x, __ieee754_acos_~x)); {108#false} is VALID [2020-07-28 17:34:18,198 INFO L280 TraceCheckUtils]: 7: Hoare triple {108#false} main_#t~ret34 := __ieee754_acos_#res;main_~res~0 := main_#t~ret34;havoc main_#t~ret34;isnan_double_#in~x := main_~res~0;havoc isnan_double_#res;havoc isnan_double_~x;isnan_double_~x := isnan_double_#in~x;isnan_double_#res := (if ~someBinaryDOUBLEComparisonOperation(isnan_double_~x, isnan_double_~x) then 1 else 0); {108#false} is VALID [2020-07-28 17:34:18,199 INFO L280 TraceCheckUtils]: 8: Hoare triple {108#false} main_#t~ret35 := isnan_double_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647; {108#false} is VALID [2020-07-28 17:34:18,199 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#false} assume 0 == main_#t~ret35;havoc main_#t~ret35; {108#false} is VALID [2020-07-28 17:34:18,200 INFO L280 TraceCheckUtils]: 10: Hoare triple {108#false} assume !false; {108#false} is VALID [2020-07-28 17:34:18,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:34:18,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896770413] [2020-07-28 17:34:18,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:34:18,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:34:18,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064617630] [2020-07-28 17:34:18,213 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:34:18,215 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:34:18,219 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:34:18,243 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:34:18,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:34:18,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:34:18,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:34:18,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:34:18,257 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 2 states. [2020-07-28 17:34:18,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:34:18,502 INFO L93 Difference]: Finished difference Result 206 states and 342 transitions. [2020-07-28 17:34:18,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:34:18,503 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:34:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:34:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:34:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 342 transitions. [2020-07-28 17:34:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:34:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 342 transitions. [2020-07-28 17:34:18,526 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 342 transitions. [2020-07-28 17:34:19,069 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 342 edges. 342 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:34:19,095 INFO L225 Difference]: With dead ends: 206 [2020-07-28 17:34:19,096 INFO L226 Difference]: Without dead ends: 101 [2020-07-28 17:34:19,101 INFO L675 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 [2020-07-28 17:34:19,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-28 17:34:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-07-28 17:34:19,161 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:34:19,162 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 101 states. [2020-07-28 17:34:19,163 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 101 states. [2020-07-28 17:34:19,163 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 101 states. [2020-07-28 17:34:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:34:19,177 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2020-07-28 17:34:19,178 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-07-28 17:34:19,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:34:19,180 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:34:19,181 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 101 states. [2020-07-28 17:34:19,181 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 101 states. [2020-07-28 17:34:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:34:19,195 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2020-07-28 17:34:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-07-28 17:34:19,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:34:19,197 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:34:19,197 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:34:19,198 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:34:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-28 17:34:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2020-07-28 17:34:19,206 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 11 [2020-07-28 17:34:19,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:34:19,206 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2020-07-28 17:34:19,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:34:19,207 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-07-28 17:34:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:34:19,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:34:19,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:34:19,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:34:19,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:34:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:34:19,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1327291576, now seen corresponding path program 1 times [2020-07-28 17:34:19,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:34:19,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213529862] [2020-07-28 17:34:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:34:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:34:19,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:34:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:34:19,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:34:19,358 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:34:19,359 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:34:19,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:34:19,438 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:34:19,439 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:34:19,439 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2020-07-28 17:34:19,439 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2020-07-28 17:34:19,439 WARN L170 areAnnotationChecker]: L298-1 has no Hoare annotation [2020-07-28 17:34:19,440 WARN L170 areAnnotationChecker]: L298-1 has no Hoare annotation [2020-07-28 17:34:19,440 WARN L170 areAnnotationChecker]: L298-3 has no Hoare annotation [2020-07-28 17:34:19,440 WARN L170 areAnnotationChecker]: L304 has no Hoare annotation [2020-07-28 17:34:19,440 WARN L170 areAnnotationChecker]: L304 has no Hoare annotation [2020-07-28 17:34:19,441 WARN L170 areAnnotationChecker]: L306-2 has no Hoare annotation [2020-07-28 17:34:19,441 WARN L170 areAnnotationChecker]: L306-2 has no Hoare annotation [2020-07-28 17:34:19,441 WARN L170 areAnnotationChecker]: L319 has no Hoare annotation [2020-07-28 17:34:19,441 WARN L170 areAnnotationChecker]: L319 has no Hoare annotation [2020-07-28 17:34:19,441 WARN L170 areAnnotationChecker]: L306-1 has no Hoare annotation [2020-07-28 17:34:19,442 WARN L170 areAnnotationChecker]: L306-1 has no Hoare annotation [2020-07-28 17:34:19,442 WARN L170 areAnnotationChecker]: L306-3 has no Hoare annotation [2020-07-28 17:34:19,442 WARN L170 areAnnotationChecker]: L306-3 has no Hoare annotation [2020-07-28 17:34:19,442 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2020-07-28 17:34:19,443 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2020-07-28 17:34:19,443 WARN L170 areAnnotationChecker]: L331 has no Hoare annotation [2020-07-28 17:34:19,443 WARN L170 areAnnotationChecker]: L331 has no Hoare annotation [2020-07-28 17:34:19,443 WARN L170 areAnnotationChecker]: L312 has no Hoare annotation [2020-07-28 17:34:19,444 WARN L170 areAnnotationChecker]: L312 has no Hoare annotation [2020-07-28 17:34:19,444 WARN L170 areAnnotationChecker]: L362 has no Hoare annotation [2020-07-28 17:34:19,444 WARN L170 areAnnotationChecker]: L176-2 has no Hoare annotation [2020-07-28 17:34:19,444 WARN L170 areAnnotationChecker]: L176-2 has no Hoare annotation [2020-07-28 17:34:19,445 WARN L170 areAnnotationChecker]: L176-6 has no Hoare annotation [2020-07-28 17:34:19,445 WARN L170 areAnnotationChecker]: L176-6 has no Hoare annotation [2020-07-28 17:34:19,445 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2020-07-28 17:34:19,445 WARN L170 areAnnotationChecker]: L176-1 has no Hoare annotation [2020-07-28 17:34:19,445 WARN L170 areAnnotationChecker]: L176-1 has no Hoare annotation [2020-07-28 17:34:19,446 WARN L170 areAnnotationChecker]: L176-3 has no Hoare annotation [2020-07-28 17:34:19,446 WARN L170 areAnnotationChecker]: L176-3 has no Hoare annotation [2020-07-28 17:34:19,446 WARN L170 areAnnotationChecker]: L176-5 has no Hoare annotation [2020-07-28 17:34:19,446 WARN L170 areAnnotationChecker]: L176-5 has no Hoare annotation [2020-07-28 17:34:19,447 WARN L170 areAnnotationChecker]: L176-7 has no Hoare annotation [2020-07-28 17:34:19,447 WARN L170 areAnnotationChecker]: L176-7 has no Hoare annotation [2020-07-28 17:34:19,447 WARN L170 areAnnotationChecker]: L376 has no Hoare annotation [2020-07-28 17:34:19,447 WARN L170 areAnnotationChecker]: L376 has no Hoare annotation [2020-07-28 17:34:19,448 WARN L170 areAnnotationChecker]: L277 has no Hoare annotation [2020-07-28 17:34:19,448 WARN L170 areAnnotationChecker]: L187 has no Hoare annotation [2020-07-28 17:34:19,448 WARN L170 areAnnotationChecker]: L187 has no Hoare annotation [2020-07-28 17:34:19,448 WARN L170 areAnnotationChecker]: L277-1 has no Hoare annotation [2020-07-28 17:34:19,448 WARN L170 areAnnotationChecker]: L187-3 has no Hoare annotation [2020-07-28 17:34:19,449 WARN L170 areAnnotationChecker]: L187-3 has no Hoare annotation [2020-07-28 17:34:19,449 WARN L170 areAnnotationChecker]: L377 has no Hoare annotation [2020-07-28 17:34:19,449 WARN L170 areAnnotationChecker]: L377 has no Hoare annotation [2020-07-28 17:34:19,449 WARN L170 areAnnotationChecker]: L381 has no Hoare annotation [2020-07-28 17:34:19,450 WARN L170 areAnnotationChecker]: L188 has no Hoare annotation [2020-07-28 17:34:19,450 WARN L170 areAnnotationChecker]: L188 has no Hoare annotation [2020-07-28 17:34:19,450 WARN L170 areAnnotationChecker]: L187-2 has no Hoare annotation [2020-07-28 17:34:19,450 WARN L170 areAnnotationChecker]: L347-2 has no Hoare annotation [2020-07-28 17:34:19,450 WARN L170 areAnnotationChecker]: L347-2 has no Hoare annotation [2020-07-28 17:34:19,451 WARN L170 areAnnotationChecker]: L188-1 has no Hoare annotation [2020-07-28 17:34:19,451 WARN L170 areAnnotationChecker]: L188-1 has no Hoare annotation [2020-07-28 17:34:19,451 WARN L170 areAnnotationChecker]: L187-5 has no Hoare annotation [2020-07-28 17:34:19,451 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:34:19,452 WARN L170 areAnnotationChecker]: L190 has no Hoare annotation [2020-07-28 17:34:19,452 WARN L170 areAnnotationChecker]: L190 has no Hoare annotation [2020-07-28 17:34:19,452 WARN L170 areAnnotationChecker]: L195 has no Hoare annotation [2020-07-28 17:34:19,452 WARN L170 areAnnotationChecker]: L195 has no Hoare annotation [2020-07-28 17:34:19,452 WARN L170 areAnnotationChecker]: L347-1 has no Hoare annotation [2020-07-28 17:34:19,453 WARN L170 areAnnotationChecker]: L347-1 has no Hoare annotation [2020-07-28 17:34:19,453 WARN L170 areAnnotationChecker]: L347-3 has no Hoare annotation [2020-07-28 17:34:19,453 WARN L170 areAnnotationChecker]: L190-1 has no Hoare annotation [2020-07-28 17:34:19,453 WARN L170 areAnnotationChecker]: L190-1 has no Hoare annotation [2020-07-28 17:34:19,454 WARN L170 areAnnotationChecker]: L195-3 has no Hoare annotation [2020-07-28 17:34:19,454 WARN L170 areAnnotationChecker]: L195-3 has no Hoare annotation [2020-07-28 17:34:19,454 WARN L170 areAnnotationChecker]: L196-2 has no Hoare annotation [2020-07-28 17:34:19,454 WARN L170 areAnnotationChecker]: L196-2 has no Hoare annotation [2020-07-28 17:34:19,454 WARN L170 areAnnotationChecker]: L196-2 has no Hoare annotation [2020-07-28 17:34:19,455 WARN L170 areAnnotationChecker]: L195-2 has no Hoare annotation [2020-07-28 17:34:19,455 WARN L170 areAnnotationChecker]: L196-6 has no Hoare annotation [2020-07-28 17:34:19,455 WARN L170 areAnnotationChecker]: L196-6 has no Hoare annotation [2020-07-28 17:34:19,455 WARN L170 areAnnotationChecker]: L196-6 has no Hoare annotation [2020-07-28 17:34:19,455 WARN L170 areAnnotationChecker]: L195-5 has no Hoare annotation [2020-07-28 17:34:19,456 WARN L170 areAnnotationChecker]: L196-3 has no Hoare annotation [2020-07-28 17:34:19,456 WARN L170 areAnnotationChecker]: L209 has no Hoare annotation [2020-07-28 17:34:19,456 WARN L170 areAnnotationChecker]: L209 has no Hoare annotation [2020-07-28 17:34:19,456 WARN L170 areAnnotationChecker]: L196-7 has no Hoare annotation [2020-07-28 17:34:19,457 WARN L170 areAnnotationChecker]: L209-3 has no Hoare annotation [2020-07-28 17:34:19,457 WARN L170 areAnnotationChecker]: L209-3 has no Hoare annotation [2020-07-28 17:34:19,457 WARN L170 areAnnotationChecker]: L201-3 has no Hoare annotation [2020-07-28 17:34:19,457 WARN L170 areAnnotationChecker]: L201-3 has no Hoare annotation [2020-07-28 17:34:19,458 WARN L170 areAnnotationChecker]: L201-3 has no Hoare annotation [2020-07-28 17:34:19,458 WARN L170 areAnnotationChecker]: L209-2 has no Hoare annotation [2020-07-28 17:34:19,458 WARN L170 areAnnotationChecker]: L201-8 has no Hoare annotation [2020-07-28 17:34:19,458 WARN L170 areAnnotationChecker]: L201-8 has no Hoare annotation [2020-07-28 17:34:19,459 WARN L170 areAnnotationChecker]: L201-8 has no Hoare annotation [2020-07-28 17:34:19,459 WARN L170 areAnnotationChecker]: L209-5 has no Hoare annotation [2020-07-28 17:34:19,459 WARN L170 areAnnotationChecker]: L201-4 has no Hoare annotation [2020-07-28 17:34:19,459 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2020-07-28 17:34:19,459 WARN L170 areAnnotationChecker]: L220-2 has no Hoare annotation [2020-07-28 17:34:19,460 WARN L170 areAnnotationChecker]: L220-2 has no Hoare annotation [2020-07-28 17:34:19,460 WARN L170 areAnnotationChecker]: L220-2 has no Hoare annotation [2020-07-28 17:34:19,460 WARN L170 areAnnotationChecker]: L201-9 has no Hoare annotation [2020-07-28 17:34:19,460 WARN L170 areAnnotationChecker]: L201-7 has no Hoare annotation [2020-07-28 17:34:19,461 WARN L170 areAnnotationChecker]: L220-6 has no Hoare annotation [2020-07-28 17:34:19,461 WARN L170 areAnnotationChecker]: L220-6 has no Hoare annotation [2020-07-28 17:34:19,461 WARN L170 areAnnotationChecker]: L220-6 has no Hoare annotation [2020-07-28 17:34:19,461 WARN L170 areAnnotationChecker]: L220-3 has no Hoare annotation [2020-07-28 17:34:19,461 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2020-07-28 17:34:19,462 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2020-07-28 17:34:19,462 WARN L170 areAnnotationChecker]: L220-7 has no Hoare annotation [2020-07-28 17:34:19,462 WARN L170 areAnnotationChecker]: L222-3 has no Hoare annotation [2020-07-28 17:34:19,462 WARN L170 areAnnotationChecker]: L222-3 has no Hoare annotation [2020-07-28 17:34:19,463 WARN L170 areAnnotationChecker]: L233-2 has no Hoare annotation [2020-07-28 17:34:19,463 WARN L170 areAnnotationChecker]: L233-2 has no Hoare annotation [2020-07-28 17:34:19,463 WARN L170 areAnnotationChecker]: L233-2 has no Hoare annotation [2020-07-28 17:34:19,463 WARN L170 areAnnotationChecker]: L222-2 has no Hoare annotation [2020-07-28 17:34:19,463 WARN L170 areAnnotationChecker]: L233-6 has no Hoare annotation [2020-07-28 17:34:19,464 WARN L170 areAnnotationChecker]: L233-6 has no Hoare annotation [2020-07-28 17:34:19,464 WARN L170 areAnnotationChecker]: L233-6 has no Hoare annotation [2020-07-28 17:34:19,464 WARN L170 areAnnotationChecker]: L222-5 has no Hoare annotation [2020-07-28 17:34:19,464 WARN L170 areAnnotationChecker]: L233-3 has no Hoare annotation [2020-07-28 17:34:19,465 WARN L170 areAnnotationChecker]: L233-3 has no Hoare annotation [2020-07-28 17:34:19,465 WARN L170 areAnnotationChecker]: L236 has no Hoare annotation [2020-07-28 17:34:19,465 WARN L170 areAnnotationChecker]: L236 has no Hoare annotation [2020-07-28 17:34:19,465 WARN L170 areAnnotationChecker]: L233-7 has no Hoare annotation [2020-07-28 17:34:19,465 WARN L170 areAnnotationChecker]: L233-7 has no Hoare annotation [2020-07-28 17:34:19,466 WARN L170 areAnnotationChecker]: L236-3 has no Hoare annotation [2020-07-28 17:34:19,466 WARN L170 areAnnotationChecker]: L236-3 has no Hoare annotation [2020-07-28 17:34:19,466 WARN L170 areAnnotationChecker]: L253 has no Hoare annotation [2020-07-28 17:34:19,466 WARN L170 areAnnotationChecker]: L253 has no Hoare annotation [2020-07-28 17:34:19,467 WARN L170 areAnnotationChecker]: L251 has no Hoare annotation [2020-07-28 17:34:19,467 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2020-07-28 17:34:19,467 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2020-07-28 17:34:19,467 WARN L170 areAnnotationChecker]: L236-2 has no Hoare annotation [2020-07-28 17:34:19,468 WARN L170 areAnnotationChecker]: L253-2 has no Hoare annotation [2020-07-28 17:34:19,468 WARN L170 areAnnotationChecker]: L253-2 has no Hoare annotation [2020-07-28 17:34:19,468 WARN L170 areAnnotationChecker]: L251-1 has no Hoare annotation [2020-07-28 17:34:19,468 WARN L170 areAnnotationChecker]: L238-3 has no Hoare annotation [2020-07-28 17:34:19,469 WARN L170 areAnnotationChecker]: L238-3 has no Hoare annotation [2020-07-28 17:34:19,469 WARN L170 areAnnotationChecker]: L236-5 has no Hoare annotation [2020-07-28 17:34:19,469 WARN L170 areAnnotationChecker]: L255 has no Hoare annotation [2020-07-28 17:34:19,469 WARN L170 areAnnotationChecker]: L255 has no Hoare annotation [2020-07-28 17:34:19,469 WARN L170 areAnnotationChecker]: L268 has no Hoare annotation [2020-07-28 17:34:19,470 WARN L170 areAnnotationChecker]: L268 has no Hoare annotation [2020-07-28 17:34:19,470 WARN L170 areAnnotationChecker]: L238-2 has no Hoare annotation [2020-07-28 17:34:19,470 WARN L170 areAnnotationChecker]: L255-2 has no Hoare annotation [2020-07-28 17:34:19,470 WARN L170 areAnnotationChecker]: L255-2 has no Hoare annotation [2020-07-28 17:34:19,471 WARN L170 areAnnotationChecker]: L268-3 has no Hoare annotation [2020-07-28 17:34:19,471 WARN L170 areAnnotationChecker]: L268-3 has no Hoare annotation [2020-07-28 17:34:19,471 WARN L170 areAnnotationChecker]: L238-5 has no Hoare annotation [2020-07-28 17:34:19,471 WARN L170 areAnnotationChecker]: L258 has no Hoare annotation [2020-07-28 17:34:19,472 WARN L170 areAnnotationChecker]: L258 has no Hoare annotation [2020-07-28 17:34:19,472 WARN L170 areAnnotationChecker]: L268-2 has no Hoare annotation [2020-07-28 17:34:19,472 WARN L170 areAnnotationChecker]: L241 has no Hoare annotation [2020-07-28 17:34:19,472 WARN L170 areAnnotationChecker]: L241 has no Hoare annotation [2020-07-28 17:34:19,473 WARN L170 areAnnotationChecker]: L258-3 has no Hoare annotation [2020-07-28 17:34:19,473 WARN L170 areAnnotationChecker]: L258-3 has no Hoare annotation [2020-07-28 17:34:19,473 WARN L170 areAnnotationChecker]: L268-5 has no Hoare annotation [2020-07-28 17:34:19,473 WARN L170 areAnnotationChecker]: L241-3 has no Hoare annotation [2020-07-28 17:34:19,473 WARN L170 areAnnotationChecker]: L241-3 has no Hoare annotation [2020-07-28 17:34:19,474 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2020-07-28 17:34:19,474 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2020-07-28 17:34:19,474 WARN L170 areAnnotationChecker]: L271-2 has no Hoare annotation [2020-07-28 17:34:19,474 WARN L170 areAnnotationChecker]: L271-2 has no Hoare annotation [2020-07-28 17:34:19,474 WARN L170 areAnnotationChecker]: L241-2 has no Hoare annotation [2020-07-28 17:34:19,475 WARN L170 areAnnotationChecker]: L259-3 has no Hoare annotation [2020-07-28 17:34:19,475 WARN L170 areAnnotationChecker]: L259-3 has no Hoare annotation [2020-07-28 17:34:19,475 WARN L170 areAnnotationChecker]: L271-6 has no Hoare annotation [2020-07-28 17:34:19,475 WARN L170 areAnnotationChecker]: L271-6 has no Hoare annotation [2020-07-28 17:34:19,476 WARN L170 areAnnotationChecker]: L241-5 has no Hoare annotation [2020-07-28 17:34:19,476 WARN L170 areAnnotationChecker]: L259-2 has no Hoare annotation [2020-07-28 17:34:19,476 WARN L170 areAnnotationChecker]: L271-1 has no Hoare annotation [2020-07-28 17:34:19,476 WARN L170 areAnnotationChecker]: L271-1 has no Hoare annotation [2020-07-28 17:34:19,476 WARN L170 areAnnotationChecker]: L271-3 has no Hoare annotation [2020-07-28 17:34:19,477 WARN L170 areAnnotationChecker]: L259-5 has no Hoare annotation [2020-07-28 17:34:19,477 WARN L170 areAnnotationChecker]: L271-5 has no Hoare annotation [2020-07-28 17:34:19,477 WARN L170 areAnnotationChecker]: L271-5 has no Hoare annotation [2020-07-28 17:34:19,477 WARN L170 areAnnotationChecker]: L271-7 has no Hoare annotation [2020-07-28 17:34:19,478 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:34:19,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:34:19 BoogieIcfgContainer [2020-07-28 17:34:19,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:34:19,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:34:19,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:34:19,482 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:34:19,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:34:17" (3/4) ... [2020-07-28 17:34:19,488 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:34:19,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:34:19,491 INFO L168 Benchmark]: Toolchain (without parser) took 3644.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 954.9 MB in the beginning and 872.1 MB in the end (delta: 82.7 MB). Peak memory consumption was 208.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:34:19,492 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:34:19,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:34:19,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:34:19,495 INFO L168 Benchmark]: Boogie Preprocessor took 117.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:34:19,496 INFO L168 Benchmark]: RCFGBuilder took 1104.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:34:19,497 INFO L168 Benchmark]: TraceAbstraction took 1569.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 872.1 MB in the end (delta: 135.4 MB). Peak memory consumption was 135.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:34:19,497 INFO L168 Benchmark]: Witness Printer took 6.54 ms. Allocated memory is still 1.2 GB. Free memory is still 872.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:34:19,502 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 705.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 132.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 117.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1104.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1569.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 872.1 MB in the end (delta: 135.4 MB). Peak memory consumption was 135.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.54 ms. Allocated memory is still 1.2 GB. Free memory is still 872.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 377]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 285, overapproximation of someBinaryArithmeticDOUBLEoperation at line 321, overapproximation of bitwiseAnd at line 303, overapproximation of someBinaryDOUBLEComparisonOperation at line 101. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L168] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L280-L293] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L372] double x = 1.0 / 0.0; [L296] double z, p, q, r, w, s, c, df; [L297] __int32_t hx, ix; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L299] ieee_double_shape_type gh_u; [L300] gh_u.value = (x) [L301] EXPR gh_u.parts.msw [L301] (hx) = gh_u.parts.msw [L303] ix = hx & 0x7fffffff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L304] COND FALSE !(ix >= 0x3ff00000) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L319] COND TRUE ix < 0x3fe00000 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L320] COND TRUE ix <= 0x3c600000 [L321] return pio2_hi_acos + pio2_lo_acos; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L373] double res = __ieee754_acos(x); [L101] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L376] COND TRUE !isnan_double(res) [L377] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 149 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:34:21,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:34:21,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:34:21,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:34:21,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:34:21,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:34:21,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:34:21,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:34:21,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:34:21,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:34:21,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:34:21,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:34:21,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:34:21,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:34:21,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:34:21,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:34:21,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:34:21,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:34:21,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:34:21,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:34:21,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:34:21,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:34:21,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:34:21,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:34:21,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:34:21,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:34:21,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:34:21,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:34:21,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:34:21,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:34:21,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:34:21,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:34:21,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:34:21,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:34:21,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:34:21,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:34:21,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:34:21,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:34:21,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:34:21,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:34:21,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:34:21,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:34:21,518 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:34:21,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:34:21,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:34:21,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:34:21,521 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:34:21,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:34:21,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:34:21,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:34:21,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:34:21,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:34:21,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:34:21,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:34:21,523 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:34:21,524 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:34:21,524 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:34:21,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:34:21,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:34:21,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:34:21,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:34:21,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:34:21,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:34:21,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:34:21,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:34:21,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:34:21,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:34:21,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:34:21,527 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:34:21,528 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:34:21,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:34:21,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:34:21,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:34:21,529 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> 4cd7167e4c5d704bd032daefd453bfeb73829b6b [2020-07-28 17:34:21,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:34:21,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:34:21,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:34:21,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:34:21,856 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:34:21,857 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0490a.c [2020-07-28 17:34:21,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc43917a/2d70436621994eaf94efc80d5390891f/FLAGae39d3d53 [2020-07-28 17:34:22,411 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:34:22,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0490a.c [2020-07-28 17:34:22,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc43917a/2d70436621994eaf94efc80d5390891f/FLAGae39d3d53 [2020-07-28 17:34:22,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc43917a/2d70436621994eaf94efc80d5390891f [2020-07-28 17:34:22,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:34:22,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:34:22,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:34:22,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:34:22,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:34:22,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:34:22" (1/1) ... [2020-07-28 17:34:22,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f77e2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:22, skipping insertion in model container [2020-07-28 17:34:22,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:34:22" (1/1) ... [2020-07-28 17:34:22,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:34:22,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:34:23,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:34:23,091 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:34:23,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:34:23,356 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:34:23,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23 WrapperNode [2020-07-28 17:34:23,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:34:23,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:34:23,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:34:23,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:34:23,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:34:23,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:34:23,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:34:23,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:34:23,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (1/1) ... [2020-07-28 17:34:23,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:34:23,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:34:23,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:34:23,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:34:23,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (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 [2020-07-28 17:34:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:34:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:34:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:34:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:34:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:34:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:34:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:34:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:34:49,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:34:49,445 INFO L295 CfgBuilder]: Removed 34 assume(true) statements. [2020-07-28 17:34:49,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:34:49 BoogieIcfgContainer [2020-07-28 17:34:49,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:34:49,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:34:49,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:34:49,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:34:49,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:34:22" (1/3) ... [2020-07-28 17:34:49,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f98c3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:34:49, skipping insertion in model container [2020-07-28 17:34:49,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:34:23" (2/3) ... [2020-07-28 17:34:49,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f98c3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:34:49, skipping insertion in model container [2020-07-28 17:34:49,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:34:49" (3/3) ... [2020-07-28 17:34:49,461 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0490a.c [2020-07-28 17:34:49,471 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:34:49,479 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:34:49,491 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:34:49,515 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:34:49,515 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:34:49,516 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:34:49,516 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:34:49,516 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:34:49,517 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:34:49,517 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:34:49,517 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:34:49,535 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2020-07-28 17:34:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:34:49,542 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:34:49,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:34:49,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:34:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:34:49,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2057048347, now seen corresponding path program 1 times [2020-07-28 17:34:49,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:34:49,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834932449] [2020-07-28 17:34:49,567 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 [2020-07-28 17:34:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:34:50,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:34:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:34:50,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:34:50,542 INFO L280 TraceCheckUtils]: 0: Hoare triple {107#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300);~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~one_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~pi~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.141592653589793);~pio2_hi_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.5707963267948966);~pio2_lo_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 6.123233995736766E-17);~pS0_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.16666666666666666);~pS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.3255658186224009));~pS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.20121253213486293);~pS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.04005553450067941));~pS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 7.915349942898145E-4);~pS5_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.479331075960212E-5);~qS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 2.403394911734414));~qS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 2.0209457602335057);~qS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.6882839716054533));~qS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.07703815055590194); {107#true} is VALID [2020-07-28 17:34:50,544 INFO L280 TraceCheckUtils]: 1: Hoare triple {107#true} havoc main_#res;havoc main_#t~ret34, main_#t~ret35, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_acos_#in~x := main_~x~0;havoc __ieee754_acos_#res;havoc __ieee754_acos_#t~mem26, __ieee754_acos_#t~union27, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, __ieee754_acos_#t~mem28, __ieee754_acos_#t~union29, __ieee754_acos_~#gl_u~0.base, __ieee754_acos_~#gl_u~0.offset, __ieee754_acos_~lx~1, __ieee754_acos_#t~ret30, __ieee754_acos_#t~ret31, __ieee754_acos_#t~mem32, __ieee754_acos_#t~union33.lsw, __ieee754_acos_#t~union33.msw, __ieee754_acos_~#sl_u~0.base, __ieee754_acos_~#sl_u~0.offset, __ieee754_acos_~x, __ieee754_acos_~z~1, __ieee754_acos_~p~0, __ieee754_acos_~q~1, __ieee754_acos_~r~1, __ieee754_acos_~w~0, __ieee754_acos_~s~0, __ieee754_acos_~c~0, __ieee754_acos_~df~0, __ieee754_acos_~hx~2, __ieee754_acos_~ix~0;__ieee754_acos_~x := __ieee754_acos_#in~x;havoc __ieee754_acos_~z~1;havoc __ieee754_acos_~p~0;havoc __ieee754_acos_~q~1;havoc __ieee754_acos_~r~1;havoc __ieee754_acos_~w~0;havoc __ieee754_acos_~s~0;havoc __ieee754_acos_~c~0;havoc __ieee754_acos_~df~0;havoc __ieee754_acos_~hx~2;havoc __ieee754_acos_~ix~0; {107#true} is VALID [2020-07-28 17:34:50,546 INFO L280 TraceCheckUtils]: 2: Hoare triple {107#true} assume !true; {108#false} is VALID [2020-07-28 17:34:50,547 INFO L280 TraceCheckUtils]: 3: Hoare triple {108#false} __ieee754_acos_~ix~0 := ~bvand32(2147483647bv32, __ieee754_acos_~hx~2); {108#false} is VALID [2020-07-28 17:34:50,547 INFO L280 TraceCheckUtils]: 4: Hoare triple {108#false} assume ~bvsge32(__ieee754_acos_~ix~0, 1072693248bv32);havoc __ieee754_acos_~lx~1; {108#false} is VALID [2020-07-28 17:34:50,548 INFO L280 TraceCheckUtils]: 5: Hoare triple {108#false} assume !true; {108#false} is VALID [2020-07-28 17:34:50,548 INFO L280 TraceCheckUtils]: 6: Hoare triple {108#false} assume !(0bv32 == ~bvor32(~bvsub32(__ieee754_acos_~ix~0, 1072693248bv32), __ieee754_acos_~lx~1));__ieee754_acos_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.sub~DOUBLE(currentRoundingMode, __ieee754_acos_~x, __ieee754_acos_~x), ~fp.sub~DOUBLE(currentRoundingMode, __ieee754_acos_~x, __ieee754_acos_~x)); {108#false} is VALID [2020-07-28 17:34:50,549 INFO L280 TraceCheckUtils]: 7: Hoare triple {108#false} main_#t~ret34 := __ieee754_acos_#res;main_~res~0 := main_#t~ret34;havoc main_#t~ret34;isnan_double_#in~x := main_~res~0;havoc isnan_double_#res;havoc isnan_double_~x;isnan_double_~x := isnan_double_#in~x;isnan_double_#res := (if !~fp.eq~DOUBLE(isnan_double_~x, isnan_double_~x) then 1bv32 else 0bv32); {108#false} is VALID [2020-07-28 17:34:50,549 INFO L280 TraceCheckUtils]: 8: Hoare triple {108#false} main_#t~ret35 := isnan_double_#res; {108#false} is VALID [2020-07-28 17:34:50,550 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#false} assume 0bv32 == main_#t~ret35;havoc main_#t~ret35; {108#false} is VALID [2020-07-28 17:34:50,550 INFO L280 TraceCheckUtils]: 10: Hoare triple {108#false} assume !false; {108#false} is VALID [2020-07-28 17:34:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:34:50,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:34:50,580 INFO L280 TraceCheckUtils]: 10: Hoare triple {108#false} assume !false; {108#false} is VALID [2020-07-28 17:34:50,580 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#false} assume 0bv32 == main_#t~ret35;havoc main_#t~ret35; {108#false} is VALID [2020-07-28 17:34:50,581 INFO L280 TraceCheckUtils]: 8: Hoare triple {108#false} main_#t~ret35 := isnan_double_#res; {108#false} is VALID [2020-07-28 17:34:50,581 INFO L280 TraceCheckUtils]: 7: Hoare triple {108#false} main_#t~ret34 := __ieee754_acos_#res;main_~res~0 := main_#t~ret34;havoc main_#t~ret34;isnan_double_#in~x := main_~res~0;havoc isnan_double_#res;havoc isnan_double_~x;isnan_double_~x := isnan_double_#in~x;isnan_double_#res := (if !~fp.eq~DOUBLE(isnan_double_~x, isnan_double_~x) then 1bv32 else 0bv32); {108#false} is VALID [2020-07-28 17:34:50,582 INFO L280 TraceCheckUtils]: 6: Hoare triple {108#false} assume !(0bv32 == ~bvor32(~bvsub32(__ieee754_acos_~ix~0, 1072693248bv32), __ieee754_acos_~lx~1));__ieee754_acos_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.sub~DOUBLE(currentRoundingMode, __ieee754_acos_~x, __ieee754_acos_~x), ~fp.sub~DOUBLE(currentRoundingMode, __ieee754_acos_~x, __ieee754_acos_~x)); {108#false} is VALID [2020-07-28 17:34:50,585 INFO L280 TraceCheckUtils]: 5: Hoare triple {108#false} assume !true; {108#false} is VALID [2020-07-28 17:34:50,586 INFO L280 TraceCheckUtils]: 4: Hoare triple {108#false} assume ~bvsge32(__ieee754_acos_~ix~0, 1072693248bv32);havoc __ieee754_acos_~lx~1; {108#false} is VALID [2020-07-28 17:34:50,586 INFO L280 TraceCheckUtils]: 3: Hoare triple {108#false} __ieee754_acos_~ix~0 := ~bvand32(2147483647bv32, __ieee754_acos_~hx~2); {108#false} is VALID [2020-07-28 17:34:50,587 INFO L280 TraceCheckUtils]: 2: Hoare triple {107#true} assume !true; {108#false} is VALID [2020-07-28 17:34:50,588 INFO L280 TraceCheckUtils]: 1: Hoare triple {107#true} havoc main_#res;havoc main_#t~ret34, main_#t~ret35, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_acos_#in~x := main_~x~0;havoc __ieee754_acos_#res;havoc __ieee754_acos_#t~mem26, __ieee754_acos_#t~union27, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, __ieee754_acos_#t~mem28, __ieee754_acos_#t~union29, __ieee754_acos_~#gl_u~0.base, __ieee754_acos_~#gl_u~0.offset, __ieee754_acos_~lx~1, __ieee754_acos_#t~ret30, __ieee754_acos_#t~ret31, __ieee754_acos_#t~mem32, __ieee754_acos_#t~union33.lsw, __ieee754_acos_#t~union33.msw, __ieee754_acos_~#sl_u~0.base, __ieee754_acos_~#sl_u~0.offset, __ieee754_acos_~x, __ieee754_acos_~z~1, __ieee754_acos_~p~0, __ieee754_acos_~q~1, __ieee754_acos_~r~1, __ieee754_acos_~w~0, __ieee754_acos_~s~0, __ieee754_acos_~c~0, __ieee754_acos_~df~0, __ieee754_acos_~hx~2, __ieee754_acos_~ix~0;__ieee754_acos_~x := __ieee754_acos_#in~x;havoc __ieee754_acos_~z~1;havoc __ieee754_acos_~p~0;havoc __ieee754_acos_~q~1;havoc __ieee754_acos_~r~1;havoc __ieee754_acos_~w~0;havoc __ieee754_acos_~s~0;havoc __ieee754_acos_~c~0;havoc __ieee754_acos_~df~0;havoc __ieee754_acos_~hx~2;havoc __ieee754_acos_~ix~0; {107#true} is VALID [2020-07-28 17:34:50,588 INFO L280 TraceCheckUtils]: 0: Hoare triple {107#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300);~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~one_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~pi~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.141592653589793);~pio2_hi_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.5707963267948966);~pio2_lo_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 6.123233995736766E-17);~pS0_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.16666666666666666);~pS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.3255658186224009));~pS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.20121253213486293);~pS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.04005553450067941));~pS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 7.915349942898145E-4);~pS5_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.479331075960212E-5);~qS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 2.403394911734414));~qS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 2.0209457602335057);~qS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.6882839716054533));~qS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.07703815055590194); {107#true} is VALID [2020-07-28 17:34:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:34:50,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834932449] [2020-07-28 17:34:50,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:34:50,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:34:50,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100812080] [2020-07-28 17:34:50,603 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:34:50,607 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:34:50,613 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:34:51,834 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:34:51,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:34:51,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:34:51,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:34:51,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:34:51,844 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 2 states. [2020-07-28 17:35:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:35:16,247 INFO L93 Difference]: Finished difference Result 206 states and 342 transitions. [2020-07-28 17:35:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:35:16,248 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:35:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:35:16,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:35:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 342 transitions. [2020-07-28 17:35:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:35:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 342 transitions. [2020-07-28 17:35:16,278 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 342 transitions. [2020-07-28 17:35:49,519 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 342 edges. 342 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:35:49,537 INFO L225 Difference]: With dead ends: 206 [2020-07-28 17:35:49,537 INFO L226 Difference]: Without dead ends: 101 [2020-07-28 17:35:49,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:35:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-28 17:35:49,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-07-28 17:35:49,595 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:35:49,596 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 101 states. [2020-07-28 17:35:49,597 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 101 states. [2020-07-28 17:35:49,597 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 101 states. [2020-07-28 17:35:49,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:35:49,606 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2020-07-28 17:35:49,607 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-07-28 17:35:49,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:35:49,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:35:49,609 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 101 states. [2020-07-28 17:35:49,609 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 101 states. [2020-07-28 17:35:49,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:35:49,617 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2020-07-28 17:35:49,617 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-07-28 17:35:49,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:35:49,619 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:35:49,619 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:35:49,619 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:35:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-28 17:35:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2020-07-28 17:35:49,628 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 11 [2020-07-28 17:35:49,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:35:49,629 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2020-07-28 17:35:49,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:35:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-07-28 17:35:49,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:35:49,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:35:49,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:35:49,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:35:49,845 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:35:49,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:35:49,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1327291576, now seen corresponding path program 1 times [2020-07-28 17:35:49,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:35:49,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912207580] [2020-07-28 17:35:49,849 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 [2020-07-28 17:35:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:35:50,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:35:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:35:50,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:35:50,332 INFO L280 TraceCheckUtils]: 0: Hoare triple {739#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300);~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~one_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~pi~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.141592653589793);~pio2_hi_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.5707963267948966);~pio2_lo_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 6.123233995736766E-17);~pS0_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.16666666666666666);~pS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.3255658186224009));~pS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.20121253213486293);~pS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.04005553450067941));~pS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 7.915349942898145E-4);~pS5_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.479331075960212E-5);~qS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 2.403394911734414));~qS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 2.0209457602335057);~qS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.6882839716054533));~qS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.07703815055590194); {739#true} is VALID [2020-07-28 17:35:50,343 INFO L280 TraceCheckUtils]: 1: Hoare triple {739#true} havoc main_#res;havoc main_#t~ret34, main_#t~ret35, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_acos_#in~x := main_~x~0;havoc __ieee754_acos_#res;havoc __ieee754_acos_#t~mem26, __ieee754_acos_#t~union27, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, __ieee754_acos_#t~mem28, __ieee754_acos_#t~union29, __ieee754_acos_~#gl_u~0.base, __ieee754_acos_~#gl_u~0.offset, __ieee754_acos_~lx~1, __ieee754_acos_#t~ret30, __ieee754_acos_#t~ret31, __ieee754_acos_#t~mem32, __ieee754_acos_#t~union33.lsw, __ieee754_acos_#t~union33.msw, __ieee754_acos_~#sl_u~0.base, __ieee754_acos_~#sl_u~0.offset, __ieee754_acos_~x, __ieee754_acos_~z~1, __ieee754_acos_~p~0, __ieee754_acos_~q~1, __ieee754_acos_~r~1, __ieee754_acos_~w~0, __ieee754_acos_~s~0, __ieee754_acos_~c~0, __ieee754_acos_~df~0, __ieee754_acos_~hx~2, __ieee754_acos_~ix~0;__ieee754_acos_~x := __ieee754_acos_#in~x;havoc __ieee754_acos_~z~1;havoc __ieee754_acos_~p~0;havoc __ieee754_acos_~q~1;havoc __ieee754_acos_~r~1;havoc __ieee754_acos_~w~0;havoc __ieee754_acos_~s~0;havoc __ieee754_acos_~c~0;havoc __ieee754_acos_~df~0;havoc __ieee754_acos_~hx~2;havoc __ieee754_acos_~ix~0; {747#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) ULTIMATE.start___ieee754_acos_~x))} is VALID [2020-07-28 17:35:50,351 INFO L280 TraceCheckUtils]: 2: Hoare triple {747#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) ULTIMATE.start___ieee754_acos_~x))} call __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(__ieee754_acos_~x, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, 8bv32);call __ieee754_acos_#t~mem26 := read~intINTTYPE4(__ieee754_acos_~#gh_u~2.base, ~bvadd32(4bv32, __ieee754_acos_~#gh_u~2.offset), 4bv32);__ieee754_acos_~hx~2 := __ieee754_acos_#t~mem26;call write~intFLOATTYPE8(__ieee754_acos_#t~union27, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, 8bv32);havoc __ieee754_acos_#t~union27;havoc __ieee754_acos_#t~mem26;call ULTIMATE.dealloc(__ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset);havoc __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset; {751#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___ieee754_acos_~hx~2)))} is VALID [2020-07-28 17:35:50,352 INFO L280 TraceCheckUtils]: 3: Hoare triple {751#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___ieee754_acos_~hx~2)))} goto; {751#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___ieee754_acos_~hx~2)))} is VALID [2020-07-28 17:35:50,357 INFO L280 TraceCheckUtils]: 4: Hoare triple {751#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___ieee754_acos_~hx~2)))} __ieee754_acos_~ix~0 := ~bvand32(2147483647bv32, __ieee754_acos_~hx~2); {758#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= ULTIMATE.start___ieee754_acos_~ix~0 (bvand (_ bv2147483647 32) ((_ extract 63 32) v_skolemized_v_prenex_1_3))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)))))} is VALID [2020-07-28 17:35:50,362 INFO L280 TraceCheckUtils]: 5: Hoare triple {758#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= ULTIMATE.start___ieee754_acos_~ix~0 (bvand (_ bv2147483647 32) ((_ extract 63 32) v_skolemized_v_prenex_1_3))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)))))} assume !~bvsge32(__ieee754_acos_~ix~0, 1072693248bv32); {740#false} is VALID [2020-07-28 17:35:50,363 INFO L280 TraceCheckUtils]: 6: Hoare triple {740#false} assume ~bvslt32(__ieee754_acos_~ix~0, 1071644672bv32); {740#false} is VALID [2020-07-28 17:35:50,363 INFO L280 TraceCheckUtils]: 7: Hoare triple {740#false} assume ~bvsle32(__ieee754_acos_~ix~0, 1012924416bv32);__ieee754_acos_#res := ~fp.add~DOUBLE(currentRoundingMode, ~pio2_hi_acos~0, ~pio2_lo_acos~0); {740#false} is VALID [2020-07-28 17:35:50,364 INFO L280 TraceCheckUtils]: 8: Hoare triple {740#false} main_#t~ret34 := __ieee754_acos_#res;main_~res~0 := main_#t~ret34;havoc main_#t~ret34;isnan_double_#in~x := main_~res~0;havoc isnan_double_#res;havoc isnan_double_~x;isnan_double_~x := isnan_double_#in~x;isnan_double_#res := (if !~fp.eq~DOUBLE(isnan_double_~x, isnan_double_~x) then 1bv32 else 0bv32); {740#false} is VALID [2020-07-28 17:35:50,364 INFO L280 TraceCheckUtils]: 9: Hoare triple {740#false} main_#t~ret35 := isnan_double_#res; {740#false} is VALID [2020-07-28 17:35:50,364 INFO L280 TraceCheckUtils]: 10: Hoare triple {740#false} assume 0bv32 == main_#t~ret35;havoc main_#t~ret35; {740#false} is VALID [2020-07-28 17:35:50,365 INFO L280 TraceCheckUtils]: 11: Hoare triple {740#false} assume !false; {740#false} is VALID [2020-07-28 17:35:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:35:50,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:35:50,570 INFO L280 TraceCheckUtils]: 11: Hoare triple {740#false} assume !false; {740#false} is VALID [2020-07-28 17:35:50,570 INFO L280 TraceCheckUtils]: 10: Hoare triple {740#false} assume 0bv32 == main_#t~ret35;havoc main_#t~ret35; {740#false} is VALID [2020-07-28 17:35:50,570 INFO L280 TraceCheckUtils]: 9: Hoare triple {740#false} main_#t~ret35 := isnan_double_#res; {740#false} is VALID [2020-07-28 17:35:50,571 INFO L280 TraceCheckUtils]: 8: Hoare triple {740#false} main_#t~ret34 := __ieee754_acos_#res;main_~res~0 := main_#t~ret34;havoc main_#t~ret34;isnan_double_#in~x := main_~res~0;havoc isnan_double_#res;havoc isnan_double_~x;isnan_double_~x := isnan_double_#in~x;isnan_double_#res := (if !~fp.eq~DOUBLE(isnan_double_~x, isnan_double_~x) then 1bv32 else 0bv32); {740#false} is VALID [2020-07-28 17:35:50,571 INFO L280 TraceCheckUtils]: 7: Hoare triple {740#false} assume ~bvsle32(__ieee754_acos_~ix~0, 1012924416bv32);__ieee754_acos_#res := ~fp.add~DOUBLE(currentRoundingMode, ~pio2_hi_acos~0, ~pio2_lo_acos~0); {740#false} is VALID [2020-07-28 17:35:50,571 INFO L280 TraceCheckUtils]: 6: Hoare triple {740#false} assume ~bvslt32(__ieee754_acos_~ix~0, 1071644672bv32); {740#false} is VALID [2020-07-28 17:35:50,573 INFO L280 TraceCheckUtils]: 5: Hoare triple {798#(bvsge ULTIMATE.start___ieee754_acos_~ix~0 (_ bv1072693248 32))} assume !~bvsge32(__ieee754_acos_~ix~0, 1072693248bv32); {740#false} is VALID [2020-07-28 17:35:50,574 INFO L280 TraceCheckUtils]: 4: Hoare triple {802#(bvsge (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acos_~hx~2) (_ bv1072693248 32))} __ieee754_acos_~ix~0 := ~bvand32(2147483647bv32, __ieee754_acos_~hx~2); {798#(bvsge ULTIMATE.start___ieee754_acos_~ix~0 (_ bv1072693248 32))} is VALID [2020-07-28 17:35:50,574 INFO L280 TraceCheckUtils]: 3: Hoare triple {802#(bvsge (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acos_~hx~2) (_ bv1072693248 32))} goto; {802#(bvsge (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acos_~hx~2) (_ bv1072693248 32))} is VALID [2020-07-28 17:35:50,578 INFO L280 TraceCheckUtils]: 2: Hoare triple {809#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (or (not (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) ULTIMATE.start___ieee754_acos_~x)) (bvsge (bvand (_ bv2147483647 32) ((_ extract 63 32) v_skolemized_v_prenex_1_3)) (_ bv1072693248 32))))} call __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(__ieee754_acos_~x, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, 8bv32);call __ieee754_acos_#t~mem26 := read~intINTTYPE4(__ieee754_acos_~#gh_u~2.base, ~bvadd32(4bv32, __ieee754_acos_~#gh_u~2.offset), 4bv32);__ieee754_acos_~hx~2 := __ieee754_acos_#t~mem26;call write~intFLOATTYPE8(__ieee754_acos_#t~union27, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, 8bv32);havoc __ieee754_acos_#t~union27;havoc __ieee754_acos_#t~mem26;call ULTIMATE.dealloc(__ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset);havoc __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset; {802#(bvsge (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acos_~hx~2) (_ bv1072693248 32))} is VALID [2020-07-28 17:35:50,582 INFO L280 TraceCheckUtils]: 1: Hoare triple {739#true} havoc main_#res;havoc main_#t~ret34, main_#t~ret35, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_acos_#in~x := main_~x~0;havoc __ieee754_acos_#res;havoc __ieee754_acos_#t~mem26, __ieee754_acos_#t~union27, __ieee754_acos_~#gh_u~2.base, __ieee754_acos_~#gh_u~2.offset, __ieee754_acos_#t~mem28, __ieee754_acos_#t~union29, __ieee754_acos_~#gl_u~0.base, __ieee754_acos_~#gl_u~0.offset, __ieee754_acos_~lx~1, __ieee754_acos_#t~ret30, __ieee754_acos_#t~ret31, __ieee754_acos_#t~mem32, __ieee754_acos_#t~union33.lsw, __ieee754_acos_#t~union33.msw, __ieee754_acos_~#sl_u~0.base, __ieee754_acos_~#sl_u~0.offset, __ieee754_acos_~x, __ieee754_acos_~z~1, __ieee754_acos_~p~0, __ieee754_acos_~q~1, __ieee754_acos_~r~1, __ieee754_acos_~w~0, __ieee754_acos_~s~0, __ieee754_acos_~c~0, __ieee754_acos_~df~0, __ieee754_acos_~hx~2, __ieee754_acos_~ix~0;__ieee754_acos_~x := __ieee754_acos_#in~x;havoc __ieee754_acos_~z~1;havoc __ieee754_acos_~p~0;havoc __ieee754_acos_~q~1;havoc __ieee754_acos_~r~1;havoc __ieee754_acos_~w~0;havoc __ieee754_acos_~s~0;havoc __ieee754_acos_~c~0;havoc __ieee754_acos_~df~0;havoc __ieee754_acos_~hx~2;havoc __ieee754_acos_~ix~0; {809#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (or (not (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) ULTIMATE.start___ieee754_acos_~x)) (bvsge (bvand (_ bv2147483647 32) ((_ extract 63 32) v_skolemized_v_prenex_1_3)) (_ bv1072693248 32))))} is VALID [2020-07-28 17:35:50,583 INFO L280 TraceCheckUtils]: 0: Hoare triple {739#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_floor~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300);~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~one_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~pi~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.141592653589793);~pio2_hi_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.5707963267948966);~pio2_lo_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 6.123233995736766E-17);~pS0_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.16666666666666666);~pS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.3255658186224009));~pS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.20121253213486293);~pS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.04005553450067941));~pS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 7.915349942898145E-4);~pS5_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.479331075960212E-5);~qS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 2.403394911734414));~qS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 2.0209457602335057);~qS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.6882839716054533));~qS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.07703815055590194); {739#true} is VALID [2020-07-28 17:35:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:35:50,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912207580] [2020-07-28 17:35:50,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:35:50,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:35:50,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243266755] [2020-07-28 17:35:50,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-07-28 17:35:50,587 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:35:50,587 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:35:50,663 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:35:50,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:35:50,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:35:50,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:35:50,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:35:50,664 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand 8 states. [2020-07-28 17:35:51,873 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-07-28 17:35:52,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:35:52,076 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:137) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:759) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:672) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:471) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 31 more [2020-07-28 17:35:52,083 INFO L168 Benchmark]: Toolchain (without parser) took 89398.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 953.5 MB in the beginning and 828.2 MB in the end (delta: 125.4 MB). Peak memory consumption was 273.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:35:52,084 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:35:52,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:35:52,085 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:35:52,086 INFO L168 Benchmark]: Boogie Preprocessor took 69.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:35:52,087 INFO L168 Benchmark]: RCFGBuilder took 25907.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:35:52,087 INFO L168 Benchmark]: TraceAbstraction took 62627.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 828.2 MB in the end (delta: 205.2 MB). Peak memory consumption was 205.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:35:52,092 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 670.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 115.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 25907.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 62627.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 828.2 MB in the end (delta: 205.2 MB). Peak memory consumption was 205.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...