./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0730b.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-newlib/float_req_bl_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 ............................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:22:05,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:22:05,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:22:05,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:22:05,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:22:05,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:22:05,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:22:05,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:22:05,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:22:05,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:22:05,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:22:05,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:22:05,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:22:05,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:22:05,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:22:05,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:22:05,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:22:05,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:22:05,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:22:05,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:22:05,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:22:05,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:22:05,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:22:05,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:22:05,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:22:05,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:22:05,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:22:05,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:22:05,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:22:05,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:22:05,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:22:05,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:22:05,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:22:05,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:22:05,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:22:05,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:22:05,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:22:05,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:22:05,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:22:05,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:22:05,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:22:05,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:22:05,742 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:22:05,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:22:05,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:22:05,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:22:05,747 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:22:05,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:22:05,748 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:22:05,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:22:05,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:22:05,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:22:05,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:22:05,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:22:05,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:22:05,751 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:22:05,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:22:05,752 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:22:05,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:22:05,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:22:05,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:22:05,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:22:05,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:22:05,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:22:05,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:22:05,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:22:05,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:22:05,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:22:05,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:22:05,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:22:05,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:22:05,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-10-24 23:22:06,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:22:06,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:22:06,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:22:06,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:22:06,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:22:06,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-10-24 23:22:06,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0adf3d62f/929512fe80e6416bab35345a4b46ea4e/FLAG0d1e83271 [2020-10-24 23:22:06,941 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:22:06,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-10-24 23:22:06,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0adf3d62f/929512fe80e6416bab35345a4b46ea4e/FLAG0d1e83271 [2020-10-24 23:22:07,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0adf3d62f/929512fe80e6416bab35345a4b46ea4e [2020-10-24 23:22:07,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:22:07,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:22:07,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:22:07,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:22:07,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:22:07,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e37b3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07, skipping insertion in model container [2020-10-24 23:22:07,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:22:07,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:22:07,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:22:07,726 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:22:07,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:22:07,776 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:22:07,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07 WrapperNode [2020-10-24 23:22:07,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:22:07,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:22:07,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:22:07,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:22:07,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:22:07,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:22:07,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:22:07,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:22:07,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (1/1) ... [2020-10-24 23:22:07,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:22:07,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:22:07,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:22:07,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:22:07,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (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 23:22:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:22:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:22:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:22:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:22:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:22:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:22:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:22:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:22:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:22:08,458 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:22:08,458 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 23:22:08,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:08 BoogieIcfgContainer [2020-10-24 23:22:08,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:22:08,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:22:08,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:22:08,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:22:08,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:22:07" (1/3) ... [2020-10-24 23:22:08,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228f208b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:22:08, skipping insertion in model container [2020-10-24 23:22:08,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:07" (2/3) ... [2020-10-24 23:22:08,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228f208b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:22:08, skipping insertion in model container [2020-10-24 23:22:08,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:08" (3/3) ... [2020-10-24 23:22:08,480 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-10-24 23:22:08,493 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:22:08,503 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:22:08,517 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:22:08,549 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:22:08,550 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:22:08,550 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:22:08,550 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:22:08,550 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:22:08,550 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:22:08,550 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:22:08,551 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:22:08,566 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-24 23:22:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:22:08,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:22:08,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:22:08,573 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:22:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:22:08,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-10-24 23:22:08,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:22:08,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775814326] [2020-10-24 23:22:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:22:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:22:08,738 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 23:22:08,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775814326] [2020-10-24 23:22:08,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:22:08,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:22:08,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950371073] [2020-10-24 23:22:08,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:22:08,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:22:08,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:22:08,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:22:08,766 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-24 23:22:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:22:08,790 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-10-24 23:22:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:22:08,792 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:22:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:22:08,804 INFO L225 Difference]: With dead ends: 73 [2020-10-24 23:22:08,804 INFO L226 Difference]: Without dead ends: 34 [2020-10-24 23:22:08,808 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 23:22:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-24 23:22:08,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-24 23:22:08,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-24 23:22:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-10-24 23:22:08,852 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-10-24 23:22:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:22:08,853 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-10-24 23:22:08,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:22:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-10-24 23:22:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:22:08,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:22:08,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:22:08,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:22:08,855 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:22:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:22:08,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-10-24 23:22:08,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:22:08,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657839608] [2020-10-24 23:22:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:22:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:22:08,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:22:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:22:08,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:22:08,984 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:22:08,984 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:22:08,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:22:09,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:22:09 BoogieIcfgContainer [2020-10-24 23:22:09,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:22:09,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:22:09,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:22:09,025 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:22:09,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:08" (3/4) ... [2020-10-24 23:22:09,030 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:22:09,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:22:09,033 INFO L168 Benchmark]: Toolchain (without parser) took 1694.84 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 19.0 MB in the beginning and 40.3 MB in the end (delta: -21.4 MB). Peak memory consumption was 269.1 kB. Max. memory is 16.1 GB. [2020-10-24 23:22:09,034 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 41.9 MB. Free memory is still 21.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:22:09,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.28 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.3 MB in the beginning and 25.1 MB in the end (delta: -6.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:09,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.75 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 23.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:22:09,037 INFO L168 Benchmark]: Boogie Preprocessor took 36.77 ms. Allocated memory is still 50.3 MB. Free memory was 23.0 MB in the beginning and 21.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:22:09,038 INFO L168 Benchmark]: RCFGBuilder took 595.05 ms. Allocated memory is still 50.3 MB. Free memory was 21.6 MB in the beginning and 26.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:09,039 INFO L168 Benchmark]: TraceAbstraction took 553.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 40.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:09,039 INFO L168 Benchmark]: Witness Printer took 5.92 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 40.3 MB in the end (delta: 302.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:22:09,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 41.9 MB. Free memory is still 21.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 425.28 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.3 MB in the beginning and 25.1 MB in the end (delta: -6.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.75 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 23.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.77 ms. Allocated memory is still 50.3 MB. Free memory was 23.0 MB in the beginning and 21.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 595.05 ms. Allocated memory is still 50.3 MB. Free memory was 21.6 MB in the beginning and 26.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 553.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 40.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.92 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 40.3 MB in the end (delta: 302.0 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 someBinaryFLOATComparisonOperation at line 107, overapproximation of bitwiseAnd at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = 0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0730b.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 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: 48 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=38occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 23:22:11,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:22:11,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:22:11,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:22:11,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:22:11,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:22:11,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:22:11,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:22:11,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:22:11,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:22:11,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:22:11,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:22:11,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:22:11,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:22:11,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:22:11,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:22:11,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:22:11,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:22:11,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:22:11,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:22:11,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:22:11,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:22:11,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:22:11,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:22:11,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:22:11,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:22:11,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:22:11,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:22:11,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:22:11,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:22:11,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:22:11,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:22:11,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:22:11,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:22:11,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:22:11,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:22:11,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:22:11,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:22:11,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:22:11,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:22:11,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:22:11,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:22:11,904 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:22:11,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:22:11,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:22:11,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:22:11,908 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:22:11,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:22:11,909 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:22:11,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:22:11,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:22:11,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:22:11,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:22:11,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:22:11,912 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:22:11,912 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:22:11,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:22:11,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:22:11,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:22:11,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:22:11,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:22:11,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:22:11,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:22:11,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:22:11,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:22:11,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:22:11,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:22:11,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:22:11,916 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:22:11,916 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:22:11,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:22:11,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:22:11,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:22:11,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-10-24 23:22:12,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:22:12,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:22:12,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:22:12,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:22:12,372 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:22:12,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-10-24 23:22:12,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c71189ef/bafa7bda90f5421c9144bc5b8e16ff41/FLAG7c06a94b8 [2020-10-24 23:22:13,185 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:22:13,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-10-24 23:22:13,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c71189ef/bafa7bda90f5421c9144bc5b8e16ff41/FLAG7c06a94b8 [2020-10-24 23:22:13,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c71189ef/bafa7bda90f5421c9144bc5b8e16ff41 [2020-10-24 23:22:13,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:22:13,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:22:13,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:22:13,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:22:13,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:22:13,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14802add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13, skipping insertion in model container [2020-10-24 23:22:13,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:22:13,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:22:13,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:22:13,816 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:22:13,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:22:13,902 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:22:13,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13 WrapperNode [2020-10-24 23:22:13,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:22:13,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:22:13,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:22:13,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:22:13,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:22:13,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:22:13,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:22:13,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:22:13,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:13,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (1/1) ... [2020-10-24 23:22:14,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:22:14,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:22:14,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:22:14,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:22:14,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (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 23:22:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:22:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:22:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:22:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:22:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:22:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:22:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:22:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:22:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:22:15,538 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:22:15,539 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 23:22:15,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:15 BoogieIcfgContainer [2020-10-24 23:22:15,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:22:15,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:22:15,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:22:15,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:22:15,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:22:13" (1/3) ... [2020-10-24 23:22:15,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e877b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:22:15, skipping insertion in model container [2020-10-24 23:22:15,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:13" (2/3) ... [2020-10-24 23:22:15,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e877b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:22:15, skipping insertion in model container [2020-10-24 23:22:15,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:15" (3/3) ... [2020-10-24 23:22:15,549 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-10-24 23:22:15,567 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:22:15,573 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:22:15,587 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:22:15,615 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:22:15,615 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:22:15,615 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:22:15,615 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:22:15,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:22:15,616 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:22:15,616 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:22:15,616 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:22:15,631 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-24 23:22:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:22:15,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:22:15,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:22:15,638 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:22:15,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:22:15,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-10-24 23:22:15,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:22:15,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928411318] [2020-10-24 23:22:15,659 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 23:22:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:22:15,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:22:15,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:22:15,924 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 23:22:15,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:22:15,929 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 23:22:15,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928411318] [2020-10-24 23:22:15,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:22:15,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:22:15,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19553151] [2020-10-24 23:22:15,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:22:15,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:22:15,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:22:15,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:22:15,959 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-24 23:22:15,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:22:15,984 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-10-24 23:22:15,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:22:15,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:22:15,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:22:15,999 INFO L225 Difference]: With dead ends: 73 [2020-10-24 23:22:15,999 INFO L226 Difference]: Without dead ends: 34 [2020-10-24 23:22:16,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 23:22:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-24 23:22:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-24 23:22:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-24 23:22:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-10-24 23:22:16,052 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-10-24 23:22:16,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:22:16,053 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-10-24 23:22:16,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:22:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-10-24 23:22:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:22:16,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:22:16,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:22:16,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:22:16,271 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:22:16,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:22:16,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-10-24 23:22:16,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:22:16,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323602897] [2020-10-24 23:22:16,282 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 23:22:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:22:16,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:22:16,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:22:16,617 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 23:22:16,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:22:16,685 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 23:22:16,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323602897] [2020-10-24 23:22:16,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:22:16,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:22:16,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435627822] [2020-10-24 23:22:16,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:22:16,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:22:16,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:22:16,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:22:16,690 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-10-24 23:22:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:22:16,770 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-10-24 23:22:16,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:22:16,771 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-24 23:22:16,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:22:16,772 INFO L225 Difference]: With dead ends: 43 [2020-10-24 23:22:16,772 INFO L226 Difference]: Without dead ends: 16 [2020-10-24 23:22:16,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:22:16,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-24 23:22:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-24 23:22:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-24 23:22:16,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-10-24 23:22:16,779 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-10-24 23:22:16,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:22:16,779 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-10-24 23:22:16,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:22:16,780 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-10-24 23:22:16,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:22:16,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:22:16,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:22:16,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:22:16,996 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:22:16,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:22:16,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2020-10-24 23:22:16,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:22:16,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385711406] [2020-10-24 23:22:16,999 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 23:22:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:22:17,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:22:17,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:22:17,255 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 23:22:17,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:22:17,283 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 23:22:17,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385711406] [2020-10-24 23:22:17,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:22:17,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-24 23:22:17,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812924898] [2020-10-24 23:22:17,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 23:22:17,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:22:17,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 23:22:17,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 23:22:17,287 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-10-24 23:22:17,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:22:17,355 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-10-24 23:22:17,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:22:17,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-24 23:22:17,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:22:17,357 INFO L225 Difference]: With dead ends: 19 [2020-10-24 23:22:17,358 INFO L226 Difference]: Without dead ends: 16 [2020-10-24 23:22:17,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:22:17,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-24 23:22:17,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-24 23:22:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-24 23:22:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-24 23:22:17,368 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-10-24 23:22:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:22:17,368 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-24 23:22:17,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 23:22:17,369 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-24 23:22:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:22:17,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:22:17,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:22:17,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:22:17,584 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:22:17,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:22:17,585 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2020-10-24 23:22:17,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:22:17,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676700307] [2020-10-24 23:22:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:22:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:22:17,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 23:22:17,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:22:17,767 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:22:17,816 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 23:22:17,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:22:18,062 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 23:22:18,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676700307] [2020-10-24 23:22:18,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:22:18,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-10-24 23:22:18,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441906849] [2020-10-24 23:22:18,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 23:22:18,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:22:18,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 23:22:18,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-24 23:22:18,066 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2020-10-24 23:22:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:22:18,278 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-24 23:22:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 23:22:18,279 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-10-24 23:22:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:22:18,280 INFO L225 Difference]: With dead ends: 16 [2020-10-24 23:22:18,280 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:22:18,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-24 23:22:18,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:22:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:22:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:22:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:22:18,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-24 23:22:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:22:18,286 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:22:18,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 23:22:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:22:18,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:22:18,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:22:18,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:22:18,655 INFO L270 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-10-24 23:22:18,655 INFO L274 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-10-24 23:22:18,655 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-10-24 23:22:18,655 INFO L274 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-10-24 23:22:18,655 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:22:18,656 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:22:18,656 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:22:18,656 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:22:18,656 INFO L274 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-10-24 23:22:18,657 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-10-24 23:22:18,657 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short16| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-10-24 23:22:18,657 INFO L274 CegarLoopResult]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2020-10-24 23:22:18,657 INFO L274 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-10-24 23:22:18,658 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-10-24 23:22:18,658 INFO L274 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-10-24 23:22:18,658 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-10-24 23:22:18,658 INFO L274 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-10-24 23:22:18,658 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2020-10-24 23:22:18,658 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-10-24 23:22:18,659 INFO L277 CegarLoopResult]: At program point L112(lines 95 113) the Hoare annotation is: true [2020-10-24 23:22:18,659 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-10-24 23:22:18,659 INFO L270 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-10-24 23:22:18,659 INFO L274 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-10-24 23:22:18,660 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-10-24 23:22:18,660 INFO L270 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-10-24 23:22:18,660 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-10-24 23:22:18,660 INFO L274 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-10-24 23:22:18,660 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:22:18,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:22:18,661 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-24 23:22:18,661 INFO L274 CegarLoopResult]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2020-10-24 23:22:18,661 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-24 23:22:18,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:22:18,662 INFO L274 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-10-24 23:22:18,662 INFO L270 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-10-24 23:22:18,662 INFO L274 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-10-24 23:22:18,662 INFO L274 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-10-24 23:22:18,663 INFO L270 CegarLoopResult]: At program point L92(lines 83 93) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short16| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-10-24 23:22:18,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:22:18 BoogieIcfgContainer [2020-10-24 23:22:18,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:22:18,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:22:18,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:22:18,695 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:22:18,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:15" (3/4) ... [2020-10-24 23:22:18,700 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:22:18,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-24 23:22:18,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:22:18,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:22:18,719 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:22:18,753 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-10-24 23:22:18,754 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-10-24 23:22:18,755 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-10-24 23:22:18,797 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:22:18,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:22:18,800 INFO L168 Benchmark]: Toolchain (without parser) took 5298.50 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 26.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:18,803 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:22:18,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.31 ms. Allocated memory is still 52.4 MB. Free memory was 28.4 MB in the beginning and 29.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:18,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 52.4 MB. Free memory was 29.9 MB in the beginning and 28.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:18,804 INFO L168 Benchmark]: Boogie Preprocessor took 46.39 ms. Allocated memory is still 52.4 MB. Free memory was 28.0 MB in the beginning and 26.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:18,805 INFO L168 Benchmark]: RCFGBuilder took 1538.09 ms. Allocated memory is still 52.4 MB. Free memory was 26.3 MB in the beginning and 32.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:18,806 INFO L168 Benchmark]: TraceAbstraction took 3151.94 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.8 MB in the beginning and 30.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:18,806 INFO L168 Benchmark]: Witness Printer took 103.13 ms. Allocated memory is still 62.9 MB. Free memory was 30.6 MB in the beginning and 26.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:22:18,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.31 ms. Allocated memory is still 52.4 MB. Free memory was 28.4 MB in the beginning and 29.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 52.4 MB. Free memory was 29.9 MB in the beginning and 28.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.39 ms. Allocated memory is still 52.4 MB. Free memory was 28.0 MB in the beginning and 26.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1538.09 ms. Allocated memory is still 52.4 MB. Free memory was 26.3 MB in the beginning and 32.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3151.94 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.8 MB in the beginning and 30.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 103.13 ms. Allocated memory is still 62.9 MB. Free memory was 30.6 MB in the beginning and 26.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2020-10-24 23:22:18,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,817 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,817 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,817 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,817 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant [2020-10-24 23:22:18,818 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,818 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,818 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,818 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,820 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant [2020-10-24 23:22:18,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,822 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,822 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,822 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-10-24 23:22:18,822 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 101 SDslu, 56 SDs, 0 SdLazy, 51 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 129 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4061 SizeOfPredicates, 22 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...