./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71d15b3186fc16a974d38e1f9340cf7de3285c68 .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71d15b3186fc16a974d38e1f9340cf7de3285c68 .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 22:43:55,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 22:43:55,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 22:43:55,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 22:43:55,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 22:43:55,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 22:43:55,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 22:43:55,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 22:43:55,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 22:43:55,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 22:43:55,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 22:43:55,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 22:43:55,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 22:43:55,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 22:43:55,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 22:43:55,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 22:43:55,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 22:43:55,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 22:43:55,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 22:43:55,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 22:43:55,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 22:43:55,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 22:43:55,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 22:43:55,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 22:43:55,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 22:43:55,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 22:43:55,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 22:43:55,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 22:43:55,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 22:43:55,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 22:43:55,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 22:43:55,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 22:43:55,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 22:43:55,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 22:43:55,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 22:43:55,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 22:43:55,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 22:43:55,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 22:43:55,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 22:43:55,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 22:43:55,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 22:43:55,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 22:43:55,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 22:43:55,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 22:43:55,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 22:43:55,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 22:43:55,687 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 22:43:55,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 22:43:55,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 22:43:55,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 22:43:55,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 22:43:55,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 22:43:55,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 22:43:55,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 22:43:55,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 22:43:55,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 22:43:55,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 22:43:55,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 22:43:55,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 22:43:55,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 22:43:55,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 22:43:55,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 22:43:55,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 22:43:55,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 22:43:55,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 22:43:55,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 22:43:55,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 22:43:55,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 22:43:55,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 22:43:55,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 22:43:55,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 22:43:55,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71d15b3186fc16a974d38e1f9340cf7de3285c68 [2020-10-24 22:43:56,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 22:43:56,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 22:43:56,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 22:43:56,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 22:43:56,205 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 22:43:56,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2020-10-24 22:43:56,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fd9341d/b0658c6d3bc041b7af1706aab9ab4048/FLAGf3c0e8b72 [2020-10-24 22:43:56,999 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 22:43:57,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2020-10-24 22:43:57,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fd9341d/b0658c6d3bc041b7af1706aab9ab4048/FLAGf3c0e8b72 [2020-10-24 22:43:57,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fd9341d/b0658c6d3bc041b7af1706aab9ab4048 [2020-10-24 22:43:57,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 22:43:57,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 22:43:57,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 22:43:57,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 22:43:57,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 22:43:57,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21dcf9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57, skipping insertion in model container [2020-10-24 22:43:57,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 22:43:57,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 22:43:57,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:43:57,694 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 22:43:57,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:43:57,745 INFO L208 MainTranslator]: Completed translation [2020-10-24 22:43:57,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57 WrapperNode [2020-10-24 22:43:57,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 22:43:57,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 22:43:57,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 22:43:57,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 22:43:57,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 22:43:57,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 22:43:57,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 22:43:57,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 22:43:57,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (1/1) ... [2020-10-24 22:43:57,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 22:43:57,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 22:43:57,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 22:43:57,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 22:43:57,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (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 [2020-10-24 22:43:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 22:43:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 22:43:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 22:43:58,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 22:43:58,571 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 22:43:58,571 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-24 22:43:58,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:58 BoogieIcfgContainer [2020-10-24 22:43:58,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 22:43:58,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 22:43:58,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 22:43:58,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 22:43:58,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:43:57" (1/3) ... [2020-10-24 22:43:58,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392de1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:43:58, skipping insertion in model container [2020-10-24 22:43:58,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:57" (2/3) ... [2020-10-24 22:43:58,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392de1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:43:58, skipping insertion in model container [2020-10-24 22:43:58,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:58" (3/3) ... [2020-10-24 22:43:58,587 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_biNewton_pseudoconstant.c [2020-10-24 22:43:58,608 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 22:43:58,614 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 22:43:58,629 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 22:43:58,658 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 22:43:58,658 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 22:43:58,659 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 22:43:58,659 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 22:43:58,659 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 22:43:58,659 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 22:43:58,660 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 22:43:58,660 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 22:43:58,683 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-24 22:43:58,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 22:43:58,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:43:58,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:43:58,692 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:43:58,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:43:58,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1569195288, now seen corresponding path program 1 times [2020-10-24 22:43:58,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 22:43:58,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104004544] [2020-10-24 22:43:58,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 22:43:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:43:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 22:43:58,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104004544] [2020-10-24 22:43:58,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 22:43:58,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 22:43:58,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560716916] [2020-10-24 22:43:58,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 22:43:58,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 22:43:58,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 22:43:58,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 22:43:58,911 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-10-24 22:43:58,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 22:43:58,931 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2020-10-24 22:43:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 22:43:58,932 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-24 22:43:58,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 22:43:58,943 INFO L225 Difference]: With dead ends: 35 [2020-10-24 22:43:58,943 INFO L226 Difference]: Without dead ends: 14 [2020-10-24 22:43:58,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 22:43:58,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-24 22:43:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-24 22:43:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-24 22:43:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-10-24 22:43:58,988 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2020-10-24 22:43:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 22:43:58,989 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-10-24 22:43:58,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 22:43:58,990 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-10-24 22:43:58,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 22:43:58,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:43:58,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:43:58,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 22:43:58,992 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:43:58,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:43:58,993 INFO L82 PathProgramCache]: Analyzing trace with hash -2049407722, now seen corresponding path program 1 times [2020-10-24 22:43:58,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 22:43:58,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989451482] [2020-10-24 22:43:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 22:43:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 22:43:59,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 22:43:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 22:43:59,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 22:43:59,131 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 22:43:59,131 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 22:43:59,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 22:43:59,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:43:59 BoogieIcfgContainer [2020-10-24 22:43:59,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 22:43:59,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 22:43:59,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 22:43:59,169 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 22:43:59,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:58" (3/4) ... [2020-10-24 22:43:59,174 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 22:43:59,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 22:43:59,177 INFO L168 Benchmark]: Toolchain (without parser) took 1800.64 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 35.7 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:43:59,179 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 46.1 MB. Free memory was 28.9 MB in the beginning and 28.9 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:43:59,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.98 ms. Allocated memory is still 46.1 MB. Free memory was 22.8 MB in the beginning and 21.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 22:43:59,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.01 ms. Allocated memory is still 46.1 MB. Free memory was 21.7 MB in the beginning and 20.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 22:43:59,182 INFO L168 Benchmark]: Boogie Preprocessor took 76.48 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.1 MB in the beginning and 41.2 MB in the end (delta: -21.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-10-24 22:43:59,183 INFO L168 Benchmark]: RCFGBuilder took 668.21 ms. Allocated memory is still 56.6 MB. Free memory was 41.0 MB in the beginning and 27.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-24 22:43:59,184 INFO L168 Benchmark]: TraceAbstraction took 591.29 ms. Allocated memory is still 56.6 MB. Free memory was 27.4 MB in the beginning and 36.0 MB in the end (delta: -8.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:43:59,184 INFO L168 Benchmark]: Witness Printer took 5.87 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 35.7 MB in the end (delta: 322.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:43:59,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 46.1 MB. Free memory was 28.9 MB in the beginning and 28.9 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.98 ms. Allocated memory is still 46.1 MB. Free memory was 22.8 MB in the beginning and 21.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.01 ms. Allocated memory is still 46.1 MB. Free memory was 21.7 MB in the beginning and 20.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.48 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.1 MB in the beginning and 41.2 MB in the end (delta: -21.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 668.21 ms. Allocated memory is still 56.6 MB. Free memory was 41.0 MB in the beginning and 27.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 591.29 ms. Allocated memory is still 56.6 MB. Free memory was 27.4 MB in the beginning and 36.0 MB in the end (delta: -8.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.87 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 35.7 MB in the end (delta: 322.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someUnaryDOUBLEoperation at line 25, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38. Possible FailurePath: [L15] double _EPS = 1e-6; VAL [_EPS=1/1000000] [L43] double d, dd, r; [L44] double epsilon = 1e-8; [L46] d = 1. VAL [_EPS=1/1000000] [L46] COND TRUE d <= 20. [L48] dd = __VERIFIER_nondet_double() [L11] COND FALSE !(!cond) VAL [_EPS=1/1000000] [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; VAL [_EPS=1/1000000] [L21] COND TRUE Input <= 1.0 [L21] xn = 1.0 VAL [_EPS=1/1000000] [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 VAL [_EPS=1/1000000] [L28] COND FALSE !(\read(cond)) VAL [_EPS=1/1000000] [L38] return 1.0 / xnp1; VAL [_EPS=1/1000000] [L51] r = SqrtR(dd) [L13] COND TRUE !(cond) VAL [_EPS=1/1000000] [L3] __assert_fail("0", "sqrt_biNewton_pseudoconstant.c", 3, "reach_error") VAL [_EPS=1/1000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 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=19occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 22:44:01,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 22:44:01,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 22:44:01,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 22:44:01,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 22:44:01,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 22:44:01,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 22:44:01,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 22:44:01,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 22:44:02,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 22:44:02,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 22:44:02,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 22:44:02,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 22:44:02,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 22:44:02,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 22:44:02,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 22:44:02,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 22:44:02,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 22:44:02,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 22:44:02,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 22:44:02,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 22:44:02,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 22:44:02,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 22:44:02,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 22:44:02,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 22:44:02,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 22:44:02,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 22:44:02,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 22:44:02,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 22:44:02,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 22:44:02,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 22:44:02,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 22:44:02,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 22:44:02,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 22:44:02,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 22:44:02,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 22:44:02,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 22:44:02,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 22:44:02,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 22:44:02,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 22:44:02,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 22:44:02,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 22:44:02,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 22:44:02,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 22:44:02,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 22:44:02,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 22:44:02,139 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 22:44:02,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 22:44:02,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 22:44:02,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 22:44:02,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 22:44:02,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 22:44:02,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 22:44:02,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 22:44:02,142 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 22:44:02,142 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 22:44:02,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 22:44:02,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 22:44:02,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 22:44:02,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 22:44:02,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 22:44:02,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 22:44:02,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 22:44:02,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 22:44:02,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 22:44:02,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 22:44:02,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 22:44:02,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 22:44:02,145 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 22:44:02,146 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 22:44:02,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 22:44:02,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 22:44:02,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 22:44:02,146 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71d15b3186fc16a974d38e1f9340cf7de3285c68 [2020-10-24 22:44:02,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 22:44:02,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 22:44:02,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 22:44:02,706 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 22:44:02,707 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 22:44:02,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2020-10-24 22:44:02,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb3820d5/5f15e81153954331aa2a2eede0cea8a5/FLAG4032368eb [2020-10-24 22:44:03,415 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 22:44:03,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2020-10-24 22:44:03,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb3820d5/5f15e81153954331aa2a2eede0cea8a5/FLAG4032368eb [2020-10-24 22:44:03,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb3820d5/5f15e81153954331aa2a2eede0cea8a5 [2020-10-24 22:44:03,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 22:44:03,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 22:44:03,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 22:44:03,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 22:44:03,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 22:44:03,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:44:03" (1/1) ... [2020-10-24 22:44:03,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a0e175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:03, skipping insertion in model container [2020-10-24 22:44:03,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:44:03" (1/1) ... [2020-10-24 22:44:03,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 22:44:03,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 22:44:04,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:44:04,139 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 22:44:04,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:44:04,235 INFO L208 MainTranslator]: Completed translation [2020-10-24 22:44:04,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04 WrapperNode [2020-10-24 22:44:04,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 22:44:04,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 22:44:04,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 22:44:04,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 22:44:04,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 22:44:04,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 22:44:04,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 22:44:04,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 22:44:04,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (1/1) ... [2020-10-24 22:44:04,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 22:44:04,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 22:44:04,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 22:44:04,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 22:44:04,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (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 [2020-10-24 22:44:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 22:44:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 22:44:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 22:44:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 22:44:14,280 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 22:44:14,280 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-24 22:44:14,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:44:14 BoogieIcfgContainer [2020-10-24 22:44:14,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 22:44:14,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 22:44:14,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 22:44:14,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 22:44:14,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:44:03" (1/3) ... [2020-10-24 22:44:14,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cff71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:44:14, skipping insertion in model container [2020-10-24 22:44:14,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:04" (2/3) ... [2020-10-24 22:44:14,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cff71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:44:14, skipping insertion in model container [2020-10-24 22:44:14,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:44:14" (3/3) ... [2020-10-24 22:44:14,293 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_biNewton_pseudoconstant.c [2020-10-24 22:44:14,311 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 22:44:14,317 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 22:44:14,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 22:44:14,361 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 22:44:14,362 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 22:44:14,362 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 22:44:14,362 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 22:44:14,362 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 22:44:14,362 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 22:44:14,363 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 22:44:14,363 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 22:44:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-24 22:44:14,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 22:44:14,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:44:14,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:44:14,388 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:44:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:44:14,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1569195288, now seen corresponding path program 1 times [2020-10-24 22:44:14,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 22:44:14,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377708418] [2020-10-24 22:44:14,410 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 [2020-10-24 22:44:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:44:16,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 22:44:16,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 22:44:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 22:44:16,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 22:44:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 22:44:16,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377708418] [2020-10-24 22:44:16,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 22:44:16,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 22:44:16,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114233694] [2020-10-24 22:44:16,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 22:44:16,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 22:44:16,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 22:44:16,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 22:44:16,387 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-10-24 22:44:16,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 22:44:16,403 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2020-10-24 22:44:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 22:44:16,405 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-24 22:44:16,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 22:44:16,414 INFO L225 Difference]: With dead ends: 35 [2020-10-24 22:44:16,414 INFO L226 Difference]: Without dead ends: 14 [2020-10-24 22:44:16,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 22:44:16,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-24 22:44:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-24 22:44:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-24 22:44:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-10-24 22:44:16,464 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2020-10-24 22:44:16,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 22:44:16,465 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-10-24 22:44:16,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 22:44:16,465 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-10-24 22:44:16,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 22:44:16,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:44:16,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:44:16,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 22:44:16,682 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:44:16,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:44:16,684 INFO L82 PathProgramCache]: Analyzing trace with hash -2049407722, now seen corresponding path program 1 times [2020-10-24 22:44:16,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 22:44:16,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619925165] [2020-10-24 22:44:16,686 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 [2020-10-24 22:44:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:44:18,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 22:44:18,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 22:44:18,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 22:44:18,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 22:44:20,749 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5)) (let ((.cse0 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0)))) is different from false [2020-10-24 22:44:22,865 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5)) (let ((.cse0 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0)))) is different from true [2020-10-24 22:44:30,463 WARN L193 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2020-10-24 22:44:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 22:44:30,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619925165] [2020-10-24 22:44:30,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 22:44:30,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 22:44:30,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673559859] [2020-10-24 22:44:30,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 22:44:30,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 22:44:30,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 22:44:30,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2020-10-24 22:44:30,471 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 8 states. [2020-10-24 22:44:33,106 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_SqrtR_~xn~0 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (or (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5)) (let ((.cse0 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_~_EPS~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)))) is different from true [2020-10-24 22:44:52,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 22:44:52,363 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2020-10-24 22:44:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 22:44:52,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-24 22:44:52,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 22:44:52,780 INFO L225 Difference]: With dead ends: 33 [2020-10-24 22:44:52,780 INFO L226 Difference]: Without dead ends: 21 [2020-10-24 22:44:52,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2020-10-24 22:44:52,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-24 22:44:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-10-24 22:44:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 22:44:52,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-10-24 22:44:52,789 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2020-10-24 22:44:52,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 22:44:52,789 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-10-24 22:44:52,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 22:44:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-10-24 22:44:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 22:44:52,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:44:52,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:44:52,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 22:44:52,999 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:44:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:44:53,001 INFO L82 PathProgramCache]: Analyzing trace with hash -274400360, now seen corresponding path program 1 times [2020-10-24 22:44:53,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 22:44:53,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863322295] [2020-10-24 22:44:53,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 22:44:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:44:56,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-24 22:44:56,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 22:44:57,092 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-24 22:44:57,103 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 22:44:57,833 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 22:44:58,208 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 22:45:00,618 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0))) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= c_ULTIMATE.start_SqrtR_~xn~0 (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_SqrtR_~Input)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse0 .cse1)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub c_currentRoundingMode .cse0 .cse1)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_~_EPS~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)))) is different from false [2020-10-24 22:45:00,636 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 22:45:00,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 22:45:04,870 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_currentRoundingMode roundNearestTiesToEven)) (.cse6 (= (_ bv1 32) c_ULTIMATE.start_SqrtR_~cond~0))) (or (and .cse0 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0))) (.cse5 (fp.div c_currentRoundingMode .cse1 ULTIMATE.start_SqrtR_~Input))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse1 .cse2)) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse5 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4) (fp.mul c_currentRoundingMode .cse3 .cse4))) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub c_currentRoundingMode .cse1 .cse2)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)) (= c_ULTIMATE.start_SqrtR_~xnp1~0 .cse5))))) .cse6) (and .cse0 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse10 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse12 (fp.div c_currentRoundingMode .cse10 ULTIMATE.start_SqrtR_~Input))) (let ((.cse8 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse9 (fp.add c_currentRoundingMode .cse12 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse7 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse8) .cse9)) (.cse11 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (and (not (fp.gt .cse7 (fp.mul c_currentRoundingMode .cse8 .cse9))) (not (fp.lt .cse7 ULTIMATE.start_SqrtR_~linf~0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse10 .cse11)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub c_currentRoundingMode .cse10 .cse11)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse10)) (= c_ULTIMATE.start_SqrtR_~xnp1~0 .cse12))))))) (= (_ bv0 32) c_ULTIMATE.start_SqrtR_~cond~0)) (and .cse0 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse14 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse15 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0))) (.cse13 (fp.div c_currentRoundingMode .cse14 ULTIMATE.start_SqrtR_~Input))) (and (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode .cse13 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse14 .cse15)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub c_currentRoundingMode .cse14 .cse15)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse14)) (= c_ULTIMATE.start_SqrtR_~xnp1~0 .cse13))))) .cse6))) is different from false [2020-10-24 22:45:07,345 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse5 (fp.div c_currentRoundingMode .cse3 ULTIMATE.start_SqrtR_~Input))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse2 (fp.add c_currentRoundingMode .cse5 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse0 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse1) .cse2)) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (and (not (fp.gt .cse0 (fp.mul c_currentRoundingMode .cse1 .cse2))) (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse3 .cse4)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub c_currentRoundingMode .cse3 .cse4)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse3)) (= c_ULTIMATE.start_SqrtR_~xnp1~0 .cse5)))))))) is different from false [2020-10-24 22:45:10,182 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse5 (fp.add c_currentRoundingMode .cse1 .cse1))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0))) (.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse4) .cse5))) (and (= |c_ULTIMATE.start_SqrtR_#res| (fp.div c_currentRoundingMode .cse0 .cse1)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse0 .cse2)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub c_currentRoundingMode .cse0 .cse2)) (not (fp.lt .cse3 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.gt .cse3 (fp.mul c_currentRoundingMode .cse4 .cse5))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0))))))))) is different from false [2020-10-24 22:45:10,198 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 22:45:15,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 22:45:33,652 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (not (fp.lt .cse2 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (not (fp.gt .cse2 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (not (fp.leq (fp.div roundNearestTiesToEven .cse0 .cse5) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1)))))))) .cse6) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse10 (fp.div roundNearestTiesToEven .cse7 ULTIMATE.start_SqrtR_~Input))) (let ((.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse12 (fp.add roundNearestTiesToEven .cse10 .cse10))) (let ((.cse9 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse11) .cse12)) (.cse8 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse7 .cse8)) (not (fp.lt .cse9 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.geq (fp.div roundNearestTiesToEven .cse7 .cse10) ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse7)) (not (fp.gt .cse9 (fp.mul roundNearestTiesToEven .cse11 .cse12))) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse7 .cse8)))))))) .cse6) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse13 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse19 (fp.div roundNearestTiesToEven .cse13 ULTIMATE.start_SqrtR_~Input))) (let ((.cse17 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse18 (fp.add roundNearestTiesToEven .cse19 .cse19))) (let ((.cse16 (fp.div roundNearestTiesToEven .cse13 .cse19)) (.cse15 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse17) .cse18)) (.cse14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse13 .cse14)) (not (fp.lt .cse15 ULTIMATE.start_SqrtR_~linf~0)) (fp.geq .cse16 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0))) (fp.leq .cse16 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse13)) (not (fp.gt .cse15 (fp.mul roundNearestTiesToEven .cse17 .cse18))) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse13 .cse14))))))))))) is different from false [2020-10-24 22:45:48,642 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (not (fp.lt .cse2 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (not (fp.gt .cse2 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (not (fp.leq (fp.div roundNearestTiesToEven .cse0 .cse5) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1)))))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53)) (v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse10 (fp.div roundNearestTiesToEven .cse9 v_prenex_1))) (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse8 (fp.add roundNearestTiesToEven .cse10 .cse10))) (let ((.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0))) (.cse6 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse7) .cse8))) (and (not (fp.gt .cse6 (fp.mul roundNearestTiesToEven .cse7 .cse8))) (not (fp.leq v_prenex_1 .cse9)) (not (fp.geq (fp.div roundNearestTiesToEven .cse9 .cse10) ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (fp.geq v_prenex_1 (fp.sub roundNearestTiesToEven .cse9 .cse11)) (fp.leq v_prenex_1 (fp.add roundNearestTiesToEven .cse9 .cse11)) (not (fp.lt .cse6 v_prenex_2))))))))) is different from false [2020-10-24 22:45:51,339 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (not (fp.lt .cse2 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (not (fp.gt .cse2 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (not (fp.leq (fp.div roundNearestTiesToEven .cse0 .cse5) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1)))))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53)) (v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse10 (fp.div roundNearestTiesToEven .cse9 v_prenex_1))) (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse8 (fp.add roundNearestTiesToEven .cse10 .cse10))) (let ((.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0))) (.cse6 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse7) .cse8))) (and (not (fp.gt .cse6 (fp.mul roundNearestTiesToEven .cse7 .cse8))) (not (fp.leq v_prenex_1 .cse9)) (not (fp.geq (fp.div roundNearestTiesToEven .cse9 .cse10) ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (fp.geq v_prenex_1 (fp.sub roundNearestTiesToEven .cse9 .cse11)) (fp.leq v_prenex_1 (fp.add roundNearestTiesToEven .cse9 .cse11)) (not (fp.lt .cse6 v_prenex_2))))))))) is different from true [2020-10-24 22:45:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 22:45:51,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 22:45:54,039 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))))) is different from false [2020-10-24 22:45:56,468 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))))) is different from true [2020-10-24 22:45:58,879 WARN L838 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))))) (not (= (_ bv0 32) c_ULTIMATE.start_SqrtR_~cond~0))) is different from false [2020-10-24 22:46:03,049 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_7))) (.cse1 (let ((.cse3 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse3) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse3)))) (.cse2 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xn~0))) (and (or .cse0 .cse1 (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode 5.0))) (or .cse0 .cse1 (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0)))))) is different from false [2020-10-24 22:46:05,615 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_7))) (.cse1 (let ((.cse3 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse3) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse3)))) (.cse2 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xn~0))) (and (or .cse0 .cse1 (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode 5.0))) (or .cse0 .cse1 (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0)))))) is different from true [2020-10-24 22:46:08,607 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse7 (fp.div c_currentRoundingMode .cse5 c_ULTIMATE.start_SqrtR_~Input))) (let ((.cse3 (fp.div c_currentRoundingMode .cse5 .cse7)) (.cse0 (let ((.cse6 (fp.add c_currentRoundingMode .cse7 .cse7))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse6) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse6)))) (.cse2 (fp.leq c_ULTIMATE.start_SqrtR_~Input .cse5))) (and (or .cse0 (forall ((v_prenex_3 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse1 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~Input))) (fp.add c_currentRoundingMode .cse1 .cse1))) v_prenex_3)) .cse2 (fp.leq .cse3 ((_ to_fp 11 53) c_currentRoundingMode 5.0))) (or (fp.geq .cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse4 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~Input))) (fp.add c_currentRoundingMode .cse4 .cse4))) v_ULTIMATE.start_SqrtR_~linf~0_7)) .cse0 .cse2))))) is different from false [2020-10-24 22:46:11,605 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse7 (fp.div c_currentRoundingMode .cse5 c_ULTIMATE.start_SqrtR_~Input))) (let ((.cse3 (fp.div c_currentRoundingMode .cse5 .cse7)) (.cse0 (let ((.cse6 (fp.add c_currentRoundingMode .cse7 .cse7))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse6) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse6)))) (.cse2 (fp.leq c_ULTIMATE.start_SqrtR_~Input .cse5))) (and (or .cse0 (forall ((v_prenex_3 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse1 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~Input))) (fp.add c_currentRoundingMode .cse1 .cse1))) v_prenex_3)) .cse2 (fp.leq .cse3 ((_ to_fp 11 53) c_currentRoundingMode 5.0))) (or (fp.geq .cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse4 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~Input))) (fp.add c_currentRoundingMode .cse4 .cse4))) v_ULTIMATE.start_SqrtR_~linf~0_7)) .cse0 .cse2))))) is different from true [2020-10-24 22:46:14,601 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse6 (fp.div c_currentRoundingMode .cse7 c_ULTIMATE.start_main_~dd~0))) (let ((.cse0 (fp.leq c_ULTIMATE.start_main_~dd~0 .cse7)) (.cse2 (fp.div c_currentRoundingMode .cse7 .cse6)) (.cse3 (let ((.cse5 (fp.add c_currentRoundingMode .cse6 .cse6))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse5) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse5))))) (and (or .cse0 (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse1 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse1 .cse1))) v_ULTIMATE.start_SqrtR_~linf~0_7)) (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) .cse3) (or .cse0 (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode 5.0)) (forall ((v_prenex_3 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse4 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse4 .cse4))) v_prenex_3)) .cse3))))) is different from false [2020-10-24 22:46:17,611 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse6 (fp.div c_currentRoundingMode .cse7 c_ULTIMATE.start_main_~dd~0))) (let ((.cse0 (fp.leq c_ULTIMATE.start_main_~dd~0 .cse7)) (.cse2 (fp.div c_currentRoundingMode .cse7 .cse6)) (.cse3 (let ((.cse5 (fp.add c_currentRoundingMode .cse6 .cse6))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse5) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse5))))) (and (or .cse0 (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse1 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse1 .cse1))) v_ULTIMATE.start_SqrtR_~linf~0_7)) (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) .cse3) (or .cse0 (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode 5.0)) (forall ((v_prenex_3 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse4 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse4 .cse4))) v_prenex_3)) .cse3))))) is different from true [2020-10-24 22:46:20,640 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse7 (fp.div c_currentRoundingMode .cse8 c_ULTIMATE.start_main_~dd~0))) (let ((.cse0 (fp.leq c_ULTIMATE.start_main_~dd~0 .cse8)) (.cse1 (fp.div c_currentRoundingMode .cse8 .cse7)) (.cse3 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) (.cse4 (let ((.cse6 (fp.add c_currentRoundingMode .cse7 .cse7))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse6) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse6))))) (and (or .cse0 (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 5.0)) (forall ((v_prenex_3 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse2 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse2 .cse2))) v_prenex_3)) .cse3 .cse4) (or .cse0 (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse5 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse5 .cse5))) v_ULTIMATE.start_SqrtR_~linf~0_7)) (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) .cse3 .cse4))))) is different from false [2020-10-24 22:46:23,642 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse8 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse7 (fp.div c_currentRoundingMode .cse8 c_ULTIMATE.start_main_~dd~0))) (let ((.cse0 (fp.leq c_ULTIMATE.start_main_~dd~0 .cse8)) (.cse1 (fp.div c_currentRoundingMode .cse8 .cse7)) (.cse3 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) (.cse4 (let ((.cse6 (fp.add c_currentRoundingMode .cse7 .cse7))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse6) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse6))))) (and (or .cse0 (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 5.0)) (forall ((v_prenex_3 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse2 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse2 .cse2))) v_prenex_3)) .cse3 .cse4) (or .cse0 (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (let ((.cse5 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_main_~dd~0))) (fp.add c_currentRoundingMode .cse5 .cse5))) v_ULTIMATE.start_SqrtR_~linf~0_7)) (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) .cse3 .cse4))))) is different from true [2020-10-24 22:46:23,648 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 5, 2, 1] term [2020-10-24 22:46:23,648 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 22:46:23,653 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-24 22:46:24,786 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-10-24 22:46:24,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863322295] [2020-10-24 22:46:24,788 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-10-24 22:46:24,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1938759525] [2020-10-24 22:46:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-24 22:46:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:46:30,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-24 22:46:30,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 22:46:30,573 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 22:46:30,574 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2020-10-24 22:46:30,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963168283] [2020-10-24 22:46:30,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 22:54:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:54:24,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-24 22:54:24,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 22:54:24,848 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 22:54:24,849 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2020-10-24 22:54:24,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-24 22:54:24,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-24 22:54:24,850 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-24 22:54:24,850 INFO L523 BasicCegarLoop]: Counterexample might be feasible [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2020-10-24 22:54:25,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt --rewrite-divk,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 22:54:25,500 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 22:54:25,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:54:25 BoogieIcfgContainer [2020-10-24 22:54:25,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 22:54:25,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 22:54:25,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 22:54:25,504 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 22:54:25,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:44:14" (3/4) ... [2020-10-24 22:54:25,512 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 22:54:25,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 22:54:25,521 INFO L168 Benchmark]: Toolchain (without parser) took 621707.13 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.0 MB in the beginning and 25.0 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-10-24 22:54:25,521 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory is still 24.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:54:25,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.49 ms. Allocated memory is still 56.6 MB. Free memory was 41.9 MB in the beginning and 31.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 22:54:25,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.98 ms. Allocated memory is still 56.6 MB. Free memory was 31.0 MB in the beginning and 29.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 22:54:25,524 INFO L168 Benchmark]: Boogie Preprocessor took 70.18 ms. Allocated memory is still 56.6 MB. Free memory was 29.4 MB in the beginning and 27.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:54:25,525 INFO L168 Benchmark]: RCFGBuilder took 9886.49 ms. Allocated memory is still 56.6 MB. Free memory was 27.9 MB in the beginning and 27.7 MB in the end (delta: 198.4 kB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-10-24 22:54:25,526 INFO L168 Benchmark]: TraceAbstraction took 611216.19 ms. Allocated memory is still 56.6 MB. Free memory was 27.3 MB in the beginning and 25.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 22:54:25,527 INFO L168 Benchmark]: Witness Printer took 13.23 ms. Allocated memory is still 56.6 MB. Free memory was 25.4 MB in the beginning and 25.0 MB in the end (delta: 348.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:54:25,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory is still 24.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 403.49 ms. Allocated memory is still 56.6 MB. Free memory was 41.9 MB in the beginning and 31.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.98 ms. Allocated memory is still 56.6 MB. Free memory was 31.0 MB in the beginning and 29.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.18 ms. Allocated memory is still 56.6 MB. Free memory was 29.4 MB in the beginning and 27.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 9886.49 ms. Allocated memory is still 56.6 MB. Free memory was 27.9 MB in the beginning and 27.7 MB in the end (delta: 198.4 kB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 611216.19 ms. Allocated memory is still 56.6 MB. Free memory was 27.3 MB in the beginning and 25.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Witness Printer took 13.23 ms. Allocated memory is still 56.6 MB. Free memory was 25.4 MB in the beginning and 25.0 MB in the end (delta: 348.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L15] double _EPS = 1e-6; [L43] double d, dd, r; [L44] double epsilon = 1e-8; [L46] d = 1. [L46] COND TRUE d <= 20. [L48] dd = __VERIFIER_nondet_double() [L11] COND FALSE !(!cond) [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; [L21] COND FALSE !(Input <= 1.0) [L21] xn = 1.0/Input [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 [L28] COND FALSE !(\read(cond)) [L38] return 1.0 / xnp1; [L51] r = SqrtR(dd) [L13] COND TRUE !(cond) [L3] __assert_fail("0", "sqrt_biNewton_pseudoconstant.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 611.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 22.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 4 SDslu, 23 SDs, 0 SdLazy, 26 SolverSat, 0 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 18.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 1 QuantifiedInterpolants, 2992 SizeOfPredicates, 8 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...