./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 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_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 0.1.25-9a8b2e8 [2020-10-20 00:30:01,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:30:01,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:30:01,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:30:01,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:30:01,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:30:01,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:30:01,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:30:01,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:30:01,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:30:01,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:30:01,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:30:01,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:30:01,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:30:01,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:30:01,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:30:01,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:30:01,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:30:01,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:30:01,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:30:01,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:30:01,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:30:01,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:30:01,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:30:01,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:30:01,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:30:01,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:30:01,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:30:01,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:30:01,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:30:01,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:30:01,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:30:01,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:30:01,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:30:01,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:30:01,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:30:01,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:30:01,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:30:01,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:30:01,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:30:01,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:30:01,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:30:01,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:30:01,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:30:01,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:30:01,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:30:01,581 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:30:01,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:30:01,582 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:30:01,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:30:01,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:30:01,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:30:01,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:30:01,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:30:01,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:30:01,584 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:30:01,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:30:01,584 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:30:01,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:30:01,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:30:01,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:30:01,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:30:01,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:30:01,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:30:01,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:30:01,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:30:01,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:30:01,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:30:01,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:30:01,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:30:01,587 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:30:01,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(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 [2020-10-20 00:30:01,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:30:01,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:30:01,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:30:01,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:30:01,818 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:30:01,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-20 00:30:01,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02192b954/38807b31085d4575878157d4d8c0ae20/FLAG8e66ab45d [2020-10-20 00:30:02,430 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:30:02,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-20 00:30:02,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02192b954/38807b31085d4575878157d4d8c0ae20/FLAG8e66ab45d [2020-10-20 00:30:02,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02192b954/38807b31085d4575878157d4d8c0ae20 [2020-10-20 00:30:02,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:30:02,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:30:02,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:02,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:30:02,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:30:02,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:02" (1/1) ... [2020-10-20 00:30:02,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214e0369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:02, skipping insertion in model container [2020-10-20 00:30:02,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:02" (1/1) ... [2020-10-20 00:30:02,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:30:02,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:30:03,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:03,146 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:30:03,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:03,211 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:30:03,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03 WrapperNode [2020-10-20 00:30:03,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:03,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:03,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:30:03,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:30:03,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:03,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:30:03,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:30:03,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:30:03,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (1/1) ... [2020-10-20 00:30:03,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:30:03,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:30:03,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:30:03,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:30:03,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (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 [2020-10-20 00:30:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:30:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:30:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:30:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:30:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:30:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:30:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:30:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:30:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:30:03,944 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:30:03,944 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-20 00:30:03,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:03 BoogieIcfgContainer [2020-10-20 00:30:03,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:30:03,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:30:03,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:30:03,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:30:03,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:30:02" (1/3) ... [2020-10-20 00:30:03,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6b74ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:03, skipping insertion in model container [2020-10-20 00:30:03,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:03" (2/3) ... [2020-10-20 00:30:03,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6b74ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:03, skipping insertion in model container [2020-10-20 00:30:03,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:03" (3/3) ... [2020-10-20 00:30:03,957 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2020-10-20 00:30:03,969 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:30:03,979 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:30:03,995 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:30:04,023 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:30:04,023 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:30:04,023 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:30:04,023 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:30:04,024 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:30:04,024 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:30:04,024 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:30:04,024 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:30:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-20 00:30:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 00:30:04,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:04,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:04,049 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:04,054 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2020-10-20 00:30:04,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:30:04,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007717861] [2020-10-20 00:30:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:30:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:04,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:04,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007717861] [2020-10-20 00:30:04,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:04,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:30:04,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480287585] [2020-10-20 00:30:04,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:30:04,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:30:04,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:30:04,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:30:04,229 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-20 00:30:04,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:04,251 INFO L93 Difference]: Finished difference Result 97 states and 153 transitions. [2020-10-20 00:30:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:30:04,252 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 00:30:04,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:04,265 INFO L225 Difference]: With dead ends: 97 [2020-10-20 00:30:04,265 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 00:30:04,269 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 [2020-10-20 00:30:04,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 00:30:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-20 00:30:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 00:30:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2020-10-20 00:30:04,306 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2020-10-20 00:30:04,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:04,307 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2020-10-20 00:30:04,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:30:04,307 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2020-10-20 00:30:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:30:04,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:04,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:04,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:30:04,308 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:04,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:04,309 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2020-10-20 00:30:04,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:30:04,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336490636] [2020-10-20 00:30:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:30:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:30:04,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:30:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:30:04,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:30:04,417 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:30:04,417 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:30:04,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:30:04,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:30:04 BoogieIcfgContainer [2020-10-20 00:30:04,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:30:04,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:30:04,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:30:04,460 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:30:04,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:03" (3/4) ... [2020-10-20 00:30:04,465 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:30:04,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:30:04,468 INFO L168 Benchmark]: Toolchain (without parser) took 1696.48 ms. Allocated memory was 34.6 MB in the beginning and 47.2 MB in the end (delta: 12.6 MB). Free memory was 16.3 MB in the beginning and 24.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,469 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 33.6 MB. Free memory was 11.1 MB in the beginning and 11.0 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.20 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 21.5 MB in the end (delta: -6.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,471 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.37 ms. Allocated memory is still 43.0 MB. Free memory was 21.4 MB in the beginning and 19.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,472 INFO L168 Benchmark]: Boogie Preprocessor took 47.15 ms. Allocated memory is still 43.0 MB. Free memory was 19.0 MB in the beginning and 16.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,473 INFO L168 Benchmark]: RCFGBuilder took 631.15 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 16.9 MB in the beginning and 17.5 MB in the end (delta: -554.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,474 INFO L168 Benchmark]: TraceAbstraction took 512.45 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 16.9 MB in the beginning and 25.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,475 INFO L168 Benchmark]: Witness Printer took 5.50 ms. Allocated memory is still 47.2 MB. Free memory was 25.3 MB in the beginning and 25.0 MB in the end (delta: 343.6 kB). Peak memory consumption was 343.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:30:04,486 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 33.6 MB. Free memory was 11.1 MB in the beginning and 11.0 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 434.20 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 21.5 MB in the end (delta: -6.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 55.37 ms. Allocated memory is still 43.0 MB. Free memory was 21.4 MB in the beginning and 19.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 47.15 ms. Allocated memory is still 43.0 MB. Free memory was 19.0 MB in the beginning and 16.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 631.15 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 16.9 MB in the beginning and 17.5 MB in the end (delta: -554.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 512.45 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 16.9 MB in the beginning and 25.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * Witness Printer took 5.50 ms. Allocated memory is still 47.2 MB. Free memory was 25.3 MB in the beginning and 25.0 MB in the end (delta: 343.6 kB). Peak memory consumption was 343.6 kB. Max. memory is 14.3 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: 0.3s, 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 0.1.25-9a8b2e8 [2020-10-20 00:30:06,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:30:06,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:30:06,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:30:06,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:30:06,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:30:06,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:30:06,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:30:06,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:30:06,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:30:06,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:30:06,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:30:06,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:30:06,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:30:06,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:30:06,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:30:06,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:30:06,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:30:06,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:30:06,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:30:06,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:30:06,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:30:06,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:30:06,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:30:06,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:30:06,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:30:06,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:30:06,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:30:06,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:30:06,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:30:06,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:30:06,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:30:06,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:30:06,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:30:06,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:30:06,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:30:06,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:30:06,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:30:06,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:30:06,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:30:06,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:30:06,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:30:06,808 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:30:06,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:30:06,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:30:06,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:30:06,813 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:30:06,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:30:06,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:30:06,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:30:06,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:30:06,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:30:06,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:30:06,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:30:06,816 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:30:06,817 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:30:06,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:30:06,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:30:06,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:30:06,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:30:06,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:30:06,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:30:06,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:30:06,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:30:06,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:30:06,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:30:06,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:30:06,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:30:06,821 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:30:06,821 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:30:06,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:30:06,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:30:06,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:30:06,823 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(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 [2020-10-20 00:30:07,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:30:07,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:30:07,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:30:07,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:30:07,121 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:30:07,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-20 00:30:07,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca6ccd834/8f08f63482c74fb09dc169611ca59198/FLAG75fa0f528 [2020-10-20 00:30:07,759 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:30:07,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-10-20 00:30:07,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca6ccd834/8f08f63482c74fb09dc169611ca59198/FLAG75fa0f528 [2020-10-20 00:30:08,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca6ccd834/8f08f63482c74fb09dc169611ca59198 [2020-10-20 00:30:08,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:30:08,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:30:08,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:08,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:30:08,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:30:08,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e087793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08, skipping insertion in model container [2020-10-20 00:30:08,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:30:08,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:30:08,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:08,449 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:30:08,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:08,518 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:30:08,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08 WrapperNode [2020-10-20 00:30:08,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:08,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:08,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:30:08,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:30:08,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:08,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:30:08,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:30:08,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:30:08,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (1/1) ... [2020-10-20 00:30:08,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:30:08,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:30:08,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:30:08,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:30:08,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (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 [2020-10-20 00:30:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:30:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:30:08,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:30:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:30:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:30:11,707 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:30:11,707 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-20 00:30:11,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:11 BoogieIcfgContainer [2020-10-20 00:30:11,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:30:11,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:30:11,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:30:11,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:30:11,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:30:08" (1/3) ... [2020-10-20 00:30:11,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cf7ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:11, skipping insertion in model container [2020-10-20 00:30:11,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:08" (2/3) ... [2020-10-20 00:30:11,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cf7ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:11, skipping insertion in model container [2020-10-20 00:30:11,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:11" (3/3) ... [2020-10-20 00:30:11,719 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2020-10-20 00:30:11,732 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:30:11,740 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:30:11,755 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:30:11,778 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:30:11,778 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:30:11,778 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:30:11,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:30:11,779 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:30:11,779 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:30:11,779 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:30:11,779 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:30:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-20 00:30:11,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 00:30:11,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:11,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:11,800 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:11,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2020-10-20 00:30:11,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:11,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366105912] [2020-10-20 00:30:11,816 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 [2020-10-20 00:30:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:12,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:30:12,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:12,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:12,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:12,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:12,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366105912] [2020-10-20 00:30:12,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:12,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:30:12,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90749092] [2020-10-20 00:30:12,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:30:12,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:30:12,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:30:12,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:30:12,260 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-20 00:30:12,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:12,282 INFO L93 Difference]: Finished difference Result 97 states and 153 transitions. [2020-10-20 00:30:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:30:12,284 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 00:30:12,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:12,294 INFO L225 Difference]: With dead ends: 97 [2020-10-20 00:30:12,294 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 00:30:12,297 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 [2020-10-20 00:30:12,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 00:30:12,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-20 00:30:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 00:30:12,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2020-10-20 00:30:12,336 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2020-10-20 00:30:12,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:12,337 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2020-10-20 00:30:12,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:30:12,337 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2020-10-20 00:30:12,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:30:12,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:12,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:12,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:30:12,544 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:12,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:12,545 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2020-10-20 00:30:12,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:12,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391598099] [2020-10-20 00:30:12,554 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 [2020-10-20 00:30:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:13,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 00:30:13,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:13,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:32,325 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 10 [2020-10-20 00:30:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:32,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391598099] [2020-10-20 00:30:32,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:32,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-20 00:30:32,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957447999] [2020-10-20 00:30:32,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:30:32,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:30:32,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:30:32,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=66, Unknown=3, NotChecked=0, Total=90 [2020-10-20 00:30:32,353 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand 10 states. [2020-10-20 00:30:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:40,665 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2020-10-20 00:30:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 00:30:40,666 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2020-10-20 00:30:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:40,667 INFO L225 Difference]: With dead ends: 51 [2020-10-20 00:30:40,667 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 00:30:40,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=48, Invalid=105, Unknown=3, NotChecked=0, Total=156 [2020-10-20 00:30:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 00:30:40,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-20 00:30:40,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 00:30:40,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2020-10-20 00:30:40,676 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 9 [2020-10-20 00:30:40,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:40,677 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2020-10-20 00:30:40,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:30:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2020-10-20 00:30:40,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 00:30:40,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:40,679 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] [2020-10-20 00:30:40,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:30:40,894 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:40,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:40,895 INFO L82 PathProgramCache]: Analyzing trace with hash -677928537, now seen corresponding path program 1 times [2020-10-20 00:30:40,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:40,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196179616] [2020-10-20 00:30:40,898 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 [2020-10-20 00:30:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:41,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:30:41,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:41,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:43,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196179616] [2020-10-20 00:30:43,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:43,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 00:30:43,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931001058] [2020-10-20 00:30:43,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:30:43,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:30:43,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:30:43,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-10-20 00:30:43,302 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand 6 states. [2020-10-20 00:30:43,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:43,397 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2020-10-20 00:30:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:30:43,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-20 00:30:43,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:43,397 INFO L225 Difference]: With dead ends: 46 [2020-10-20 00:30:43,397 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:30:43,398 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 [2020-10-20 00:30:43,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:30:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:30:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:30:43,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:30:43,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-20 00:30:43,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:43,400 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:30:43,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:30:43,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:30:43,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:30:43,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:30:43,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:30:43,761 INFO L277 CegarLoopResult]: At program point L151(lines 134 152) the Hoare annotation is: true [2020-10-20 00:30:43,762 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-10-20 00:30:43,762 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:30:43,762 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:30:43,762 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:30:43,762 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:30:43,762 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|)) [2020-10-20 00:30:43,762 INFO L274 CegarLoopResult]: For program point L95(lines 95 96) no Hoare annotation was computed. [2020-10-20 00:30:43,763 INFO L274 CegarLoopResult]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2020-10-20 00:30:43,763 INFO L270 CegarLoopResult]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2020-10-20 00:30:43,763 INFO L274 CegarLoopResult]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2020-10-20 00:30:43,763 INFO L274 CegarLoopResult]: For program point L112(lines 112 117) no Hoare annotation was computed. [2020-10-20 00:30:43,764 INFO L274 CegarLoopResult]: For program point L63(lines 63 66) no Hoare annotation was computed. [2020-10-20 00:30:43,764 INFO L274 CegarLoopResult]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2020-10-20 00:30:43,764 INFO L274 CegarLoopResult]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2020-10-20 00:30:43,764 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))) [2020-10-20 00:30:43,764 INFO L274 CegarLoopResult]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2020-10-20 00:30:43,764 INFO L274 CegarLoopResult]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2020-10-20 00:30:43,765 INFO L270 CegarLoopResult]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2020-10-20 00:30:43,765 INFO L274 CegarLoopResult]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2020-10-20 00:30:43,765 INFO L274 CegarLoopResult]: For program point L146(lines 146 149) no Hoare annotation was computed. [2020-10-20 00:30:43,765 INFO L274 CegarLoopResult]: For program point L113(lines 113 114) no Hoare annotation was computed. [2020-10-20 00:30:43,766 INFO L274 CegarLoopResult]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2020-10-20 00:30:43,766 INFO L274 CegarLoopResult]: For program point L105(lines 105 119) no Hoare annotation was computed. [2020-10-20 00:30:43,766 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-10-20 00:30:43,766 INFO L274 CegarLoopResult]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2020-10-20 00:30:43,767 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)) [2020-10-20 00:30:43,767 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:30:43,767 INFO L274 CegarLoopResult]: For program point L90(lines 90 99) no Hoare annotation was computed. [2020-10-20 00:30:43,767 INFO L274 CegarLoopResult]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2020-10-20 00:30:43,768 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:30:43,768 INFO L274 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-10-20 00:30:43,768 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2020-10-20 00:30:43,768 INFO L274 CegarLoopResult]: For program point L107(lines 107 118) no Hoare annotation was computed. [2020-10-20 00:30:43,768 INFO L274 CegarLoopResult]: For program point L41(lines 41 46) no Hoare annotation was computed. [2020-10-20 00:30:43,769 INFO L270 CegarLoopResult]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2020-10-20 00:30:43,769 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2020-10-20 00:30:43,769 INFO L274 CegarLoopResult]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2020-10-20 00:30:43,769 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:30:43,770 INFO L270 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-10-20 00:30:43,770 INFO L274 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-10-20 00:30:43,770 INFO L274 CegarLoopResult]: For program point L42(lines 42 45) no Hoare annotation was computed. [2020-10-20 00:30:43,770 INFO L274 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-10-20 00:30:43,770 INFO L274 CegarLoopResult]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2020-10-20 00:30:43,771 INFO L270 CegarLoopResult]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2020-10-20 00:30:43,771 INFO L274 CegarLoopResult]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2020-10-20 00:30:43,771 INFO L274 CegarLoopResult]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2020-10-20 00:30:43,771 INFO L274 CegarLoopResult]: For program point L109(lines 109 117) no Hoare annotation was computed. [2020-10-20 00:30:43,772 INFO L274 CegarLoopResult]: For program point L76(lines 76 80) no Hoare annotation was computed. [2020-10-20 00:30:43,772 INFO L274 CegarLoopResult]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2020-10-20 00:30:43,785 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:30:43,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,790 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,791 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:30:43,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,794 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,800 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:30:43 BoogieIcfgContainer [2020-10-20 00:30:43,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:30:43,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:30:43,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:30:43,807 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:30:43,807 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:11" (3/4) ... [2020-10-20 00:30:43,811 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:30:43,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-20 00:30:43,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 00:30:43,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:30:43,827 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:30:43,858 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) [2020-10-20 00:30:43,859 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 [2020-10-20 00:30:43,860 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 [2020-10-20 00:30:43,923 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:30:43,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:30:43,928 INFO L168 Benchmark]: Toolchain (without parser) took 35799.50 ms. Allocated memory was 42.5 MB in the beginning and 49.8 MB in the end (delta: 7.3 MB). Free memory was 21.0 MB in the beginning and 15.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,929 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 32.0 MB. Free memory was 9.2 MB in the beginning and 9.2 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.28 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 20.1 MB in the beginning and 16.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.70 ms. Allocated memory is still 43.0 MB. Free memory was 16.6 MB in the beginning and 14.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,937 INFO L168 Benchmark]: Boogie Preprocessor took 59.40 ms. Allocated memory is still 43.0 MB. Free memory was 14.5 MB in the beginning and 12.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,938 INFO L168 Benchmark]: RCFGBuilder took 3067.69 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 12.2 MB in the beginning and 19.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,939 INFO L168 Benchmark]: TraceAbstraction took 32094.90 ms. Allocated memory was 45.1 MB in the beginning and 49.8 MB in the end (delta: 4.7 MB). Free memory was 18.7 MB in the beginning and 21.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,939 INFO L168 Benchmark]: Witness Printer took 120.44 ms. Allocated memory is still 49.8 MB. Free memory was 21.4 MB in the beginning and 15.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:43,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 32.0 MB. Free memory was 9.2 MB in the beginning and 9.2 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 384.28 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 20.1 MB in the beginning and 16.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 61.70 ms. Allocated memory is still 43.0 MB. Free memory was 16.6 MB in the beginning and 14.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 59.40 ms. Allocated memory is still 43.0 MB. Free memory was 14.5 MB in the beginning and 12.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 3067.69 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 12.2 MB in the beginning and 19.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 32094.90 ms. Allocated memory was 45.1 MB in the beginning and 49.8 MB in the end (delta: 4.7 MB). Free memory was 18.7 MB in the beginning and 21.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. * Witness Printer took 120.44 ms. Allocated memory is still 49.8 MB. Free memory was 21.4 MB in the beginning and 15.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 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 [2020-10-20 00:30:43,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:30:43,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:30:43,954 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 [2020-10-20 00:30:43,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,967 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 [2020-10-20 00:30:43,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:30:43,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:30:43,971 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: 31.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 71 SDslu, 281 SDs, 0 SdLazy, 56 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 23.4s 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 21.6s 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...