./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0720.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/double_req_bl_0720.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 bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 ................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0720.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 bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:11:22,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:11:22,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:11:22,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:11:22,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:11:22,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:11:22,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:11:22,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:11:22,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:11:22,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:11:22,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:11:22,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:11:22,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:11:22,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:11:22,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:11:22,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:11:22,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:11:22,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:11:22,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:11:22,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:11:22,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:11:22,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:11:22,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:11:22,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:11:22,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:11:22,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:11:22,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:11:22,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:11:22,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:11:22,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:11:22,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:11:22,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:11:22,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:11:22,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:11:22,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:11:22,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:11:22,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:11:22,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:11:22,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:11:22,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:11:22,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:11:22,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:11:22,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:11:22,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:11:22,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:11:22,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:11:22,218 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:11:22,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:11:22,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:11:22,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:11:22,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:11:22,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:11:22,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:11:22,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:11:22,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:11:22,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:11:22,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:11:22,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:11:22,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:11:22,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:11:22,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:11:22,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:11:22,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:11:22,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:11:22,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:11:22,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:11:22,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:11:22,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:11:22,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:11:22,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:11:22,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:11:22,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 [2020-10-24 23:11:22,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:11:22,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:11:22,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:11:22,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:11:22,719 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:11:22,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-24 23:11:22,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f271ecc8/4088b4ed96044fa285a8d0b7a9519660/FLAG90a66ac5e [2020-10-24 23:11:23,444 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:11:23,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-24 23:11:23,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f271ecc8/4088b4ed96044fa285a8d0b7a9519660/FLAG90a66ac5e [2020-10-24 23:11:23,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f271ecc8/4088b4ed96044fa285a8d0b7a9519660 [2020-10-24 23:11:23,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:11:23,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:11:23,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:23,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:11:23,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:11:23,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:23" (1/1) ... [2020-10-24 23:11:23,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1dc42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:23, skipping insertion in model container [2020-10-24 23:11:23,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:23" (1/1) ... [2020-10-24 23:11:23,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:11:23,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:11:24,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:24,268 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:11:24,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:24,335 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:11:24,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24 WrapperNode [2020-10-24 23:11:24,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:24,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:24,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:11:24,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:11:24,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:24,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:11:24,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:11:24,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:11:24,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (1/1) ... [2020-10-24 23:11:24,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:11:24,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:11:24,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:11:24,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:11:24,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (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 23:11:24,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:11:24,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:11:24,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:11:24,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:11:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:11:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:11:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:11:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:11:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:11:25,181 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:11:25,182 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 23:11:25,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:25 BoogieIcfgContainer [2020-10-24 23:11:25,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:11:25,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:11:25,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:11:25,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:11:25,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:11:23" (1/3) ... [2020-10-24 23:11:25,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150eadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:25, skipping insertion in model container [2020-10-24 23:11:25,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:24" (2/3) ... [2020-10-24 23:11:25,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150eadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:25, skipping insertion in model container [2020-10-24 23:11:25,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:25" (3/3) ... [2020-10-24 23:11:25,207 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2020-10-24 23:11:25,224 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:11:25,235 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:11:25,255 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:11:25,295 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:11:25,295 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:11:25,296 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:11:25,296 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:11:25,296 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:11:25,296 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:11:25,296 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:11:25,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:11:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-24 23:11:25,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 23:11:25,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:25,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:25,319 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:25,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:25,325 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2020-10-24 23:11:25,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:11:25,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038794931] [2020-10-24 23:11:25,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:11:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:11:25,483 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 23:11:25,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038794931] [2020-10-24 23:11:25,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:11:25,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:11:25,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160788007] [2020-10-24 23:11:25,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:11:25,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:11:25,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:11:25,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:11:25,509 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-24 23:11:25,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:11:25,535 INFO L93 Difference]: Finished difference Result 97 states and 153 transitions. [2020-10-24 23:11:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:11:25,537 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-24 23:11:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:11:25,549 INFO L225 Difference]: With dead ends: 97 [2020-10-24 23:11:25,549 INFO L226 Difference]: Without dead ends: 46 [2020-10-24 23:11:25,553 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 23:11:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-24 23:11:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-24 23:11:25,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-24 23:11:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2020-10-24 23:11:25,594 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2020-10-24 23:11:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:11:25,594 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2020-10-24 23:11:25,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:11:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2020-10-24 23:11:25,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:11:25,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:25,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:25,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:11:25,596 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:25,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:25,597 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2020-10-24 23:11:25,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:11:25,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556197225] [2020-10-24 23:11:25,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:11:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:11:25,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:11:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:11:25,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:11:25,779 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:11:25,780 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:11:25,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:11:25,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:11:25 BoogieIcfgContainer [2020-10-24 23:11:25,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:11:25,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:11:25,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:11:25,818 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:11:25,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:25" (3/4) ... [2020-10-24 23:11:25,823 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:11:25,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:11:25,826 INFO L168 Benchmark]: Toolchain (without parser) took 1993.87 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.1 MB in the beginning and 37.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:25,827 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 22.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:11:25,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.90 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 24.7 MB in the end (delta: 830.0 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:25,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.25 ms. Allocated memory is still 48.2 MB. Free memory was 24.7 MB in the beginning and 22.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:25,829 INFO L168 Benchmark]: Boogie Preprocessor took 61.81 ms. Allocated memory is still 48.2 MB. Free memory was 22.5 MB in the beginning and 32.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:25,830 INFO L168 Benchmark]: RCFGBuilder took 730.65 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 32.0 MB in the beginning and 28.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:25,831 INFO L168 Benchmark]: TraceAbstraction took 626.64 ms. Allocated memory is still 58.7 MB. Free memory was 27.8 MB in the beginning and 37.4 MB in the end (delta: -9.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:11:25,832 INFO L168 Benchmark]: Witness Printer took 5.33 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 37.1 MB in the end (delta: 329.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:25,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.2 MB in the end (delta: 22.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.90 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 24.7 MB in the end (delta: 830.0 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.25 ms. Allocated memory is still 48.2 MB. Free memory was 24.7 MB in the beginning and 22.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.81 ms. Allocated memory is still 48.2 MB. Free memory was 22.5 MB in the beginning and 32.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 730.65 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 32.0 MB in the beginning and 28.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 626.64 ms. Allocated memory is still 58.7 MB. Free memory was 27.8 MB in the beginning and 37.4 MB in the end (delta: -9.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.33 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 37.1 MB in the end (delta: 329.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of bitwiseAnd at line 37. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] double x = 0.0 / 0.0; [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (x) [L33] EXPR ew_u.parts.msw [L33] (ix0) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ix1) = ew_u.parts.lsw [L37] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L38] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_sqrt(x); [L20] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L146] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0720.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 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: 68 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=50occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 23:11:28,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:11:28,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:11:28,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:11:28,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:11:28,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:11:28,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:11:28,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:11:28,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:11:28,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:11:28,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:11:28,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:11:28,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:11:28,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:11:28,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:11:28,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:11:28,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:11:28,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:11:28,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:11:28,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:11:28,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:11:28,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:11:28,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:11:28,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:11:28,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:11:28,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:11:28,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:11:28,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:11:28,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:11:28,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:11:28,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:11:28,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:11:28,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:11:28,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:11:28,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:11:28,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:11:28,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:11:28,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:11:28,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:11:28,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:11:28,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:11:28,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:11:28,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:11:28,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:11:28,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:11:28,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:11:28,685 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:11:28,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:11:28,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:11:28,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:11:28,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:11:28,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:11:28,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:11:28,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:11:28,689 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:11:28,689 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:11:28,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:11:28,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:11:28,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:11:28,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:11:28,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:11:28,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:11:28,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:11:28,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:11:28,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:11:28,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:11:28,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:11:28,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:11:28,693 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:11:28,693 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:11:28,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:11:28,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:11:28,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:11:28,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 [2020-10-24 23:11:29,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:11:29,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:11:29,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:11:29,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:11:29,138 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:11:29,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-24 23:11:29,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9f386175/8bfa7bc474d946fd9fa66d624addd0d0/FLAGe2a2afc69 [2020-10-24 23:11:29,942 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:11:29,943 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-24 23:11:29,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9f386175/8bfa7bc474d946fd9fa66d624addd0d0/FLAGe2a2afc69 [2020-10-24 23:11:30,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9f386175/8bfa7bc474d946fd9fa66d624addd0d0 [2020-10-24 23:11:30,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:11:30,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:11:30,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:30,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:11:30,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:11:30,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed7399f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30, skipping insertion in model container [2020-10-24 23:11:30,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:11:30,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:11:30,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:30,647 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:11:30,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:30,717 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:11:30,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30 WrapperNode [2020-10-24 23:11:30,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:30,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:30,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:11:30,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:11:30,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:30,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:11:30,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:11:30,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:11:30,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (1/1) ... [2020-10-24 23:11:30,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:11:30,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:11:30,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:11:30,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:11:30,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (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 23:11:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:11:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:11:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:11:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:11:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:11:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:11:30,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:11:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:11:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:11:34,362 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:11:34,363 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 23:11:34,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:34 BoogieIcfgContainer [2020-10-24 23:11:34,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:11:34,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:11:34,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:11:34,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:11:34,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:11:30" (1/3) ... [2020-10-24 23:11:34,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9d877f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:34, skipping insertion in model container [2020-10-24 23:11:34,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:30" (2/3) ... [2020-10-24 23:11:34,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9d877f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:34, skipping insertion in model container [2020-10-24 23:11:34,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:34" (3/3) ... [2020-10-24 23:11:34,376 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2020-10-24 23:11:34,390 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:11:34,396 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:11:34,411 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:11:34,452 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:11:34,452 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:11:34,452 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:11:34,453 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:11:34,453 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:11:34,453 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:11:34,453 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:11:34,453 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:11:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-24 23:11:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 23:11:34,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:34,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:34,478 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:34,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:34,485 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2020-10-24 23:11:34,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:11:34,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094709202] [2020-10-24 23:11:34,500 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 23:11:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:11:34,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:11:34,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:11:34,965 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 23:11:34,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:11:34,969 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 23:11:34,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094709202] [2020-10-24 23:11:34,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:11:34,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:11:34,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166797531] [2020-10-24 23:11:34,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:11:34,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:11:34,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:11:34,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:11:34,996 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-24 23:11:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:11:35,022 INFO L93 Difference]: Finished difference Result 97 states and 153 transitions. [2020-10-24 23:11:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:11:35,024 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-24 23:11:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:11:35,035 INFO L225 Difference]: With dead ends: 97 [2020-10-24 23:11:35,036 INFO L226 Difference]: Without dead ends: 46 [2020-10-24 23:11:35,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 23:11:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-24 23:11:35,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-24 23:11:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-24 23:11:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2020-10-24 23:11:35,090 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2020-10-24 23:11:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:11:35,090 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2020-10-24 23:11:35,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:11:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2020-10-24 23:11:35,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:11:35,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:35,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:35,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:11:35,305 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:35,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:35,307 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2020-10-24 23:11:35,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:11:35,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235160160] [2020-10-24 23:11:35,309 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 23:11:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:11:35,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-24 23:11:35,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:11:35,833 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 23:11:35,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:11:37,978 WARN L838 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_sqrt_~x c_ULTIMATE.start___ieee754_sqrt_~x) c_ULTIMATE.start___ieee754_sqrt_~x)) is different from false [2020-10-24 23:11:38,503 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 23:11:38,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235160160] [2020-10-24 23:11:38,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:11:38,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-24 23:11:38,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350278450] [2020-10-24 23:11:38,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 23:11:38,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:11:38,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 23:11:38,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2020-10-24 23:11:38,509 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand 10 states. [2020-10-24 23:11:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:11:42,335 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2020-10-24 23:11:42,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:11:42,336 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2020-10-24 23:11:42,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:11:42,338 INFO L225 Difference]: With dead ends: 51 [2020-10-24 23:11:42,338 INFO L226 Difference]: Without dead ends: 46 [2020-10-24 23:11:42,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=44, Invalid=91, Unknown=1, NotChecked=20, Total=156 [2020-10-24 23:11:42,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-24 23:11:42,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-24 23:11:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-24 23:11:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2020-10-24 23:11:42,347 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 9 [2020-10-24 23:11:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:11:42,347 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2020-10-24 23:11:42,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 23:11:42,348 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2020-10-24 23:11:42,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-24 23:11:42,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:42,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:42,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:11:42,564 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:42,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:42,566 INFO L82 PathProgramCache]: Analyzing trace with hash -677928537, now seen corresponding path program 1 times [2020-10-24 23:11:42,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:11:42,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996558494] [2020-10-24 23:11:42,569 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 23:11:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:11:42,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:11:42,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:11:42,844 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 23:11:42,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:11:45,008 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 23:11:45,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996558494] [2020-10-24 23:11:45,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:11:45,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 23:11:45,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199195610] [2020-10-24 23:11:45,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:11:45,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:11:45,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:11:45,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-10-24 23:11:45,011 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand 6 states. [2020-10-24 23:11:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:11:45,118 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2020-10-24 23:11:45,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:11:45,118 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-24 23:11:45,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:11:45,119 INFO L225 Difference]: With dead ends: 46 [2020-10-24 23:11:45,119 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:11:45,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2020-10-24 23:11:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:11:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:11:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:11:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:11:45,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-24 23:11:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:11:45,121 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:11:45,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:11:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:11:45,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:11:45,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:11:45,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:11:45,477 INFO L277 CegarLoopResult]: At program point L151(lines 134 152) the Hoare annotation is: true [2020-10-24 23:11:45,477 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-10-24 23:11:45,477 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:11:45,477 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:11:45,477 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:11:45,477 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:11:45,478 INFO L270 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrt_#res|) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_sqrt_~x) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-10-24 23:11:45,478 INFO L274 CegarLoopResult]: For program point L95(lines 95 96) no Hoare annotation was computed. [2020-10-24 23:11:45,478 INFO L274 CegarLoopResult]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2020-10-24 23:11:45,478 INFO L270 CegarLoopResult]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2020-10-24 23:11:45,478 INFO L274 CegarLoopResult]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2020-10-24 23:11:45,478 INFO L274 CegarLoopResult]: For program point L112(lines 112 117) no Hoare annotation was computed. [2020-10-24 23:11:45,479 INFO L274 CegarLoopResult]: For program point L63(lines 63 66) no Hoare annotation was computed. [2020-10-24 23:11:45,479 INFO L274 CegarLoopResult]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2020-10-24 23:11:45,479 INFO L274 CegarLoopResult]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2020-10-24 23:11:45,479 INFO L270 CegarLoopResult]: At program point L30-2(lines 30 35) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_sqrt_~x))) [2020-10-24 23:11:45,479 INFO L274 CegarLoopResult]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2020-10-24 23:11:45,479 INFO L274 CegarLoopResult]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2020-10-24 23:11:45,480 INFO L270 CegarLoopResult]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2020-10-24 23:11:45,480 INFO L274 CegarLoopResult]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2020-10-24 23:11:45,480 INFO L274 CegarLoopResult]: For program point L146(lines 146 149) no Hoare annotation was computed. [2020-10-24 23:11:45,480 INFO L274 CegarLoopResult]: For program point L113(lines 113 114) no Hoare annotation was computed. [2020-10-24 23:11:45,484 INFO L274 CegarLoopResult]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2020-10-24 23:11:45,485 INFO L274 CegarLoopResult]: For program point L105(lines 105 119) no Hoare annotation was computed. [2020-10-24 23:11:45,485 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-10-24 23:11:45,485 INFO L274 CegarLoopResult]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2020-10-24 23:11:45,485 INFO L270 CegarLoopResult]: At program point L131(lines 24 132) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrt_#res|) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_sqrt_~x) (= currentRoundingMode roundNearestTiesToEven)) [2020-10-24 23:11:45,486 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:11:45,486 INFO L274 CegarLoopResult]: For program point L90(lines 90 99) no Hoare annotation was computed. [2020-10-24 23:11:45,486 INFO L274 CegarLoopResult]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2020-10-24 23:11:45,486 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:11:45,486 INFO L274 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-10-24 23:11:45,486 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2020-10-24 23:11:45,486 INFO L274 CegarLoopResult]: For program point L107(lines 107 118) no Hoare annotation was computed. [2020-10-24 23:11:45,487 INFO L274 CegarLoopResult]: For program point L41(lines 41 46) no Hoare annotation was computed. [2020-10-24 23:11:45,487 INFO L270 CegarLoopResult]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2020-10-24 23:11:45,487 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2020-10-24 23:11:45,487 INFO L274 CegarLoopResult]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2020-10-24 23:11:45,488 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:11:45,488 INFO L270 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-10-24 23:11:45,488 INFO L274 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-10-24 23:11:45,488 INFO L274 CegarLoopResult]: For program point L42(lines 42 45) no Hoare annotation was computed. [2020-10-24 23:11:45,489 INFO L274 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-10-24 23:11:45,489 INFO L274 CegarLoopResult]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2020-10-24 23:11:45,489 INFO L270 CegarLoopResult]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2020-10-24 23:11:45,489 INFO L274 CegarLoopResult]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2020-10-24 23:11:45,489 INFO L274 CegarLoopResult]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2020-10-24 23:11:45,489 INFO L274 CegarLoopResult]: For program point L109(lines 109 117) no Hoare annotation was computed. [2020-10-24 23:11:45,489 INFO L274 CegarLoopResult]: For program point L76(lines 76 80) no Hoare annotation was computed. [2020-10-24 23:11:45,489 INFO L274 CegarLoopResult]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2020-10-24 23:11:45,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:11:45,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:11:45,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,525 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,525 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:11:45 BoogieIcfgContainer [2020-10-24 23:11:45,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:11:45,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:11:45,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:11:45,538 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:11:45,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:34" (3/4) ... [2020-10-24 23:11:45,543 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:11:45,561 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-24 23:11:45,562 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 23:11:45,562 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:11:45,563 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:11:45,598 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-10-24 23:11:45,608 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-10-24 23:11:45,609 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2020-10-24 23:11:45,703 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:11:45,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:11:45,708 INFO L168 Benchmark]: Toolchain (without parser) took 15400.63 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 20.9 MB in the beginning and 40.3 MB in the end (delta: -19.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:45,709 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 44.0 MB. Free memory is still 23.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:11:45,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.11 ms. Allocated memory is still 54.5 MB. Free memory was 40.1 MB in the beginning and 27.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:45,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.22 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 38.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:45,713 INFO L168 Benchmark]: Boogie Preprocessor took 102.93 ms. Allocated memory is still 54.5 MB. Free memory was 38.7 MB in the beginning and 36.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:45,713 INFO L168 Benchmark]: RCFGBuilder took 3468.98 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 26.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:45,714 INFO L168 Benchmark]: TraceAbstraction took 11170.02 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.2 MB in the beginning and 44.5 MB in the end (delta: -18.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:45,714 INFO L168 Benchmark]: Witness Printer took 165.75 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 40.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:45,717 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 44.0 MB. Free memory is still 23.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.11 ms. Allocated memory is still 54.5 MB. Free memory was 40.1 MB in the beginning and 27.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.22 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 38.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.93 ms. Allocated memory is still 54.5 MB. Free memory was 38.7 MB in the beginning and 36.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3468.98 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 26.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11170.02 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 26.2 MB in the beginning and 44.5 MB in the end (delta: -18.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Witness Printer took 165.75 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 40.3 MB in the end (delta: 4.2 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant [2020-10-24 23:11:45,734 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:11:45,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:11:45,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-10-24 23:11:45,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 20]: Loop Invariant [2020-10-24 23:11:45,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:11:45,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:11:45,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 73 SDslu, 280 SDs, 0 SdLazy, 56 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 76 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 4 QuantifiedInterpolants, 4170 SizeOfPredicates, 16 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...