./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8843c970c14fead2ee32d56c7ad1a4a87598c42c .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8843c970c14fead2ee32d56c7ad1a4a87598c42c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:52:58,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:52:58,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:52:58,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:52:58,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:52:58,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:52:58,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:52:58,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:52:58,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:52:58,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:52:58,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:52:58,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:52:58,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:52:58,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:52:58,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:52:58,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:52:58,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:52:58,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:52:58,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:52:58,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:52:58,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:52:58,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:52:58,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:52:58,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:52:58,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:52:58,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:52:58,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:52:58,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:52:58,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:52:58,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:52:58,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:52:58,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:52:58,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:52:58,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:52:58,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:52:58,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:52:58,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:52:58,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:52:58,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:52:58,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:52:58,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:52:58,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:52:58,441 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:52:58,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:52:58,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:52:58,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:52:58,444 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:52:58,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:52:58,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:52:58,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:52:58,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:52:58,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:52:58,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:52:58,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:52:58,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:52:58,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:52:58,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:52:58,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:52:58,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:52:58,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:52:58,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:52:58,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:52:58,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:52:58,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:52:58,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:52:58,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:52:58,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:52:58,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:52:58,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:52:58,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:52:58,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:52:58,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8843c970c14fead2ee32d56c7ad1a4a87598c42c [2020-07-28 17:52:58,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:52:58,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:52:58,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:52:58,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:52:58,761 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:52:58,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2020-07-28 17:52:58,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a765627df/a1805cce5be34d6b863d3bc567de9698/FLAG7d7377521 [2020-07-28 17:52:59,261 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:52:59,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2020-07-28 17:52:59,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a765627df/a1805cce5be34d6b863d3bc567de9698/FLAG7d7377521 [2020-07-28 17:52:59,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a765627df/a1805cce5be34d6b863d3bc567de9698 [2020-07-28 17:52:59,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:52:59,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:52:59,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:52:59,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:52:59,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:52:59,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:52:59,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727498c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59, skipping insertion in model container [2020-07-28 17:52:59,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:52:59,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:52:59,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:52:59,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:52:59,909 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:52:59,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:52:59,959 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:52:59,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59 WrapperNode [2020-07-28 17:52:59,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:52:59,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:52:59,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:52:59,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:00,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:00,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:00,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:00,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:00,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... [2020-07-28 17:53:00,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:00,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:00,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:00,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:00,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:53:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:53:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:53:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:53:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:00,570 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:00,570 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:53:00,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:00 BoogieIcfgContainer [2020-07-28 17:53:00,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:00,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:00,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:00,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:00,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:52:59" (1/3) ... [2020-07-28 17:53:00,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de2c8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:00, skipping insertion in model container [2020-07-28 17:53:00,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:52:59" (2/3) ... [2020-07-28 17:53:00,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de2c8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:00, skipping insertion in model container [2020-07-28 17:53:00,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:00" (3/3) ... [2020-07-28 17:53:00,583 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a.c [2020-07-28 17:53:00,595 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:00,603 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:00,617 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:00,637 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:00,637 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:00,638 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:00,638 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:00,638 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:00,638 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:00,639 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:00,639 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-28 17:53:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:00,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:00,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:00,662 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:00,667 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2020-07-28 17:53:00,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:00,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067318538] [2020-07-28 17:53:00,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:00,809 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {21#true} is VALID [2020-07-28 17:53:00,810 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0);fabs_float_#in~x := main_~x~0;havoc fabs_float_#res;havoc fabs_float_#t~mem0, fabs_float_#t~union1, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, fabs_float_#t~mem2, fabs_float_#t~union3, fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, fabs_float_~x, fabs_float_~ix~0;fabs_float_~x := fabs_float_#in~x;havoc fabs_float_~ix~0; {21#true} is VALID [2020-07-28 17:53:00,812 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-28 17:53:00,813 INFO L280 TraceCheckUtils]: 3: Hoare triple {22#false} assume !true; {22#false} is VALID [2020-07-28 17:53:00,813 INFO L280 TraceCheckUtils]: 4: Hoare triple {22#false} fabs_float_#res := fabs_float_~x; {22#false} is VALID [2020-07-28 17:53:00,813 INFO L280 TraceCheckUtils]: 5: Hoare triple {22#false} main_#t~ret6 := fabs_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~1;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~1; {22#false} is VALID [2020-07-28 17:53:00,814 INFO L280 TraceCheckUtils]: 6: Hoare triple {22#false} assume !true; {22#false} is VALID [2020-07-28 17:53:00,814 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} isinf_float_~ix~1 := ~bitwiseAnd(isinf_float_~ix~1, 2147483647);isinf_float_#res := (if 2139095040 == isinf_float_~ix~1 then 1 else 0); {22#false} is VALID [2020-07-28 17:53:00,815 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} main_#t~ret7 := isinf_float_#res;assume -2147483648 <= main_#t~ret7 && main_#t~ret7 <= 2147483647; {22#false} is VALID [2020-07-28 17:53:00,815 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume 0 == main_#t~ret7;havoc main_#t~ret7; {22#false} is VALID [2020-07-28 17:53:00,815 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-28 17:53:00,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:00,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067318538] [2020-07-28 17:53:00,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:00,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:53:00,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997553033] [2020-07-28 17:53:00,828 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:53:00,830 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:00,834 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:00,859 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:00,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:00,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:53:00,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:00,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:00,878 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-07-28 17:53:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:00,937 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2020-07-28 17:53:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:00,937 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:53:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:53:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:53:00,955 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 46 transitions. [2020-07-28 17:53:01,078 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:01,092 INFO L225 Difference]: With dead ends: 34 [2020-07-28 17:53:01,093 INFO L226 Difference]: Without dead ends: 15 [2020-07-28 17:53:01,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:01,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-28 17:53:01,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-28 17:53:01,139 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:01,140 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:01,140 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:01,141 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:01,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:01,143 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:53:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:53:01,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:01,146 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:01,146 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:01,146 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:01,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:01,154 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:53:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:53:01,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:01,155 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:01,155 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:01,157 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:53:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-28 17:53:01,162 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2020-07-28 17:53:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:01,162 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-28 17:53:01,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:01,163 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:53:01,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:53:01,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:01,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:01,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:53:01,166 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:01,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:01,167 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2020-07-28 17:53:01,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:01,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378777896] [2020-07-28 17:53:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:01,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:01,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:01,348 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:53:01,348 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:53:01,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:53:01,377 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:01,377 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:01,378 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-28 17:53:01,378 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-28 17:53:01,378 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 17:53:01,378 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 17:53:01,378 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-28 17:53:01,378 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-28 17:53:01,378 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 17:53:01,379 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 17:53:01,379 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-28 17:53:01,379 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:53:01,379 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-28 17:53:01,379 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-28 17:53:01,379 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:53:01,379 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:53:01,380 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-28 17:53:01,380 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-28 17:53:01,380 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-28 17:53:01,380 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-28 17:53:01,380 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-28 17:53:01,380 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-28 17:53:01,380 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-28 17:53:01,381 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:01,381 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:53:01,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:01 BoogieIcfgContainer [2020-07-28 17:53:01,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:01,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:01,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:01,384 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:01,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:00" (3/4) ... [2020-07-28 17:53:01,392 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:53:01,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:01,401 INFO L168 Benchmark]: Toolchain (without parser) took 1732.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -96.6 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:01,401 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:01,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.08 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:01,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:01,404 INFO L168 Benchmark]: Boogie Preprocessor took 36.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:01,405 INFO L168 Benchmark]: RCFGBuilder took 471.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:01,406 INFO L168 Benchmark]: TraceAbstraction took 807.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:01,406 INFO L168 Benchmark]: Witness Printer took 11.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:01,410 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.08 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 104.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 471.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 807.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * Witness Printer took 11.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 51]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L46] float x = 1.0f / 0.0f; [L12] __uint32_t ix; [L14] ieee_float_shape_type gf_u; [L15] gf_u.value = (x) [L16] EXPR gf_u.word [L16] (ix) = gf_u.word [L19] ieee_float_shape_type sf_u; [L20] sf_u.word = (ix & 0x7fffffff) [L21] EXPR sf_u.value [L21] (x) = sf_u.value [L23] return x; [L47] float res = fabs_float(x); [L28] __int32_t ix; [L30] ieee_float_shape_type gf_u; [L31] gf_u.value = (x) [L32] EXPR gf_u.word [L32] (ix) = gf_u.word [L34] ix &= 0x7fffffff [L35] return ((ix) == 0x7f800000L); [L50] COND TRUE !isinf_float(res) [L51] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 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=18occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:53:03,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:03,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:03,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:03,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:03,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:03,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:03,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:03,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:03,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:03,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:03,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:03,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:03,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:03,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:03,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:03,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:03,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:03,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:03,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:03,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:03,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:03,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:03,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:03,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:03,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:03,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:03,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:03,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:03,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:03,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:03,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:03,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:03,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:03,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:03,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:03,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:03,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:03,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:03,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:03,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:03,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:53:03,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:03,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:03,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:03,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:03,545 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:03,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:03,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:03,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:03,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:03,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:03,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:03,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:03,548 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:53:03,548 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:53:03,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:03,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:03,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:03,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:03,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:03,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:03,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:03,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:03,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:03,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:03,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:03,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:03,552 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:53:03,552 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:53:03,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:03,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:03,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:53:03,553 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8843c970c14fead2ee32d56c7ad1a4a87598c42c [2020-07-28 17:53:03,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:03,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:03,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:03,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:03,881 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:03,882 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2020-07-28 17:53:03,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0044c8694/0754992c084b4d86be19ae91a6f87271/FLAG7dad388b3 [2020-07-28 17:53:04,357 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:04,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2020-07-28 17:53:04,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0044c8694/0754992c084b4d86be19ae91a6f87271/FLAG7dad388b3 [2020-07-28 17:53:04,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0044c8694/0754992c084b4d86be19ae91a6f87271 [2020-07-28 17:53:04,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:04,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:04,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:04,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:04,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:04,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:04" (1/1) ... [2020-07-28 17:53:04,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@776c14d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:04, skipping insertion in model container [2020-07-28 17:53:04,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:04" (1/1) ... [2020-07-28 17:53:04,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:04,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:05,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:05,041 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:05,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:05,225 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:05,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05 WrapperNode [2020-07-28 17:53:05,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:05,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:05,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:05,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:05,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:05,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:05,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:05,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:05,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... [2020-07-28 17:53:05,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:05,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:05,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:05,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:05,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:53:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:53:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:53:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:53:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:05,794 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:05,795 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:53:05,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:05 BoogieIcfgContainer [2020-07-28 17:53:05,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:05,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:05,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:05,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:05,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:04" (1/3) ... [2020-07-28 17:53:05,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db42626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:05, skipping insertion in model container [2020-07-28 17:53:05,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:05" (2/3) ... [2020-07-28 17:53:05,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db42626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:05, skipping insertion in model container [2020-07-28 17:53:05,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:05" (3/3) ... [2020-07-28 17:53:05,825 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a.c [2020-07-28 17:53:05,835 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:05,843 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:05,857 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:05,882 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:05,882 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:05,882 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:05,882 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:05,883 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:05,883 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:05,883 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:05,883 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-28 17:53:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:05,903 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:05,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:05,905 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:05,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:05,910 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2020-07-28 17:53:05,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:05,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640902269] [2020-07-28 17:53:05,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 17:53:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:06,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:53:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:06,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:06,100 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {21#true} is VALID [2020-07-28 17:53:06,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());fabs_float_#in~x := main_~x~0;havoc fabs_float_#res;havoc fabs_float_#t~mem0, fabs_float_#t~union1, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, fabs_float_#t~mem2, fabs_float_#t~union3, fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, fabs_float_~x, fabs_float_~ix~0;fabs_float_~x := fabs_float_#in~x;havoc fabs_float_~ix~0; {21#true} is VALID [2020-07-28 17:53:06,102 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:53:06,102 INFO L280 TraceCheckUtils]: 3: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:53:06,102 INFO L280 TraceCheckUtils]: 4: Hoare triple {21#true} fabs_float_#res := fabs_float_~x; {21#true} is VALID [2020-07-28 17:53:06,103 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} main_#t~ret6 := fabs_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~1;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~1; {21#true} is VALID [2020-07-28 17:53:06,104 INFO L280 TraceCheckUtils]: 6: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-28 17:53:06,105 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} isinf_float_~ix~1 := ~bvand32(2147483647bv32, isinf_float_~ix~1);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~1 then 1bv32 else 0bv32); {22#false} is VALID [2020-07-28 17:53:06,105 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} main_#t~ret7 := isinf_float_#res; {22#false} is VALID [2020-07-28 17:53:06,105 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {22#false} is VALID [2020-07-28 17:53:06,106 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-28 17:53:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:06,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:06,130 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-28 17:53:06,130 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {22#false} is VALID [2020-07-28 17:53:06,130 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} main_#t~ret7 := isinf_float_#res; {22#false} is VALID [2020-07-28 17:53:06,131 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} isinf_float_~ix~1 := ~bvand32(2147483647bv32, isinf_float_~ix~1);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~1 then 1bv32 else 0bv32); {22#false} is VALID [2020-07-28 17:53:06,132 INFO L280 TraceCheckUtils]: 6: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-28 17:53:06,132 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} main_#t~ret6 := fabs_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~1;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~1; {21#true} is VALID [2020-07-28 17:53:06,133 INFO L280 TraceCheckUtils]: 4: Hoare triple {21#true} fabs_float_#res := fabs_float_~x; {21#true} is VALID [2020-07-28 17:53:06,133 INFO L280 TraceCheckUtils]: 3: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:53:06,133 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume !true; {21#true} is VALID [2020-07-28 17:53:06,134 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());fabs_float_#in~x := main_~x~0;havoc fabs_float_#res;havoc fabs_float_#t~mem0, fabs_float_#t~union1, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, fabs_float_#t~mem2, fabs_float_#t~union3, fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, fabs_float_~x, fabs_float_~ix~0;fabs_float_~x := fabs_float_#in~x;havoc fabs_float_~ix~0; {21#true} is VALID [2020-07-28 17:53:06,134 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {21#true} is VALID [2020-07-28 17:53:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:06,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640902269] [2020-07-28 17:53:06,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:06,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:53:06,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8201700] [2020-07-28 17:53:06,145 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:53:06,147 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:06,151 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:06,177 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:06,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:06,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:06,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:06,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:06,191 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-07-28 17:53:06,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:06,263 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2020-07-28 17:53:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:06,264 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 17:53:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:53:06,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 17:53:06,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 46 transitions. [2020-07-28 17:53:06,357 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:06,367 INFO L225 Difference]: With dead ends: 34 [2020-07-28 17:53:06,368 INFO L226 Difference]: Without dead ends: 15 [2020-07-28 17:53:06,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-28 17:53:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-28 17:53:06,403 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:06,404 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:06,404 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:06,405 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:06,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:06,407 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:53:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:53:06,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:06,408 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:06,408 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:06,408 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 17:53:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:06,410 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:53:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:53:06,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:06,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:06,411 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:06,412 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:53:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-28 17:53:06,415 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2020-07-28 17:53:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:06,415 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-28 17:53:06,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:06,416 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-28 17:53:06,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:53:06,416 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:06,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:06,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:53:06,630 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:06,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:06,631 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2020-07-28 17:53:06,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:06,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169668713] [2020-07-28 17:53:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 17:53:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:06,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-28 17:53:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:06,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:07,091 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:53:07,188 INFO L280 TraceCheckUtils]: 0: Hoare triple {178#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {178#true} is VALID [2020-07-28 17:53:07,191 INFO L280 TraceCheckUtils]: 1: Hoare triple {178#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());fabs_float_#in~x := main_~x~0;havoc fabs_float_#res;havoc fabs_float_#t~mem0, fabs_float_#t~union1, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, fabs_float_#t~mem2, fabs_float_#t~union3, fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, fabs_float_~x, fabs_float_~ix~0;fabs_float_~x := fabs_float_#in~x;havoc fabs_float_~ix~0; {186#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x))} is VALID [2020-07-28 17:53:07,196 INFO L280 TraceCheckUtils]: 2: Hoare triple {186#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x))} call fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(fabs_float_~x, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, 4bv32);call fabs_float_#t~mem0 := read~intINTTYPE4(fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, 4bv32);fabs_float_~ix~0 := fabs_float_#t~mem0;call write~intFLOATTYPE4(fabs_float_#t~union1, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, 4bv32);havoc fabs_float_#t~union1;havoc fabs_float_#t~mem0;call ULTIMATE.dealloc(fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset);havoc fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset; {190#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0))))} is VALID [2020-07-28 17:53:07,197 INFO L280 TraceCheckUtils]: 3: Hoare triple {190#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0))))} goto; {190#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0))))} is VALID [2020-07-28 17:53:07,201 INFO L280 TraceCheckUtils]: 4: Hoare triple {190#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0))))} call fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(~bvand32(2147483647bv32, fabs_float_~ix~0), fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, 4bv32);call fabs_float_#t~mem2 := read~intFLOATTYPE4(fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, 4bv32);fabs_float_~x := fabs_float_#t~mem2;call write~intINTTYPE4(fabs_float_#t~union3, fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, 4bv32);havoc fabs_float_#t~mem2;havoc fabs_float_#t~union3;call ULTIMATE.dealloc(fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset);havoc fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset; {186#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x))} is VALID [2020-07-28 17:53:07,202 INFO L280 TraceCheckUtils]: 5: Hoare triple {186#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x))} goto; {186#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x))} is VALID [2020-07-28 17:53:07,203 INFO L280 TraceCheckUtils]: 6: Hoare triple {186#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x))} fabs_float_#res := fabs_float_~x; {203#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|))} is VALID [2020-07-28 17:53:07,204 INFO L280 TraceCheckUtils]: 7: Hoare triple {203#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|))} main_#t~ret6 := fabs_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~1;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~1; {207#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_isinf_float_~x))} is VALID [2020-07-28 17:53:07,209 INFO L280 TraceCheckUtils]: 8: Hoare triple {207#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_isinf_float_~x))} call isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);call isinf_float_#t~mem4 := read~intINTTYPE4(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);isinf_float_~ix~1 := isinf_float_#t~mem4;call write~intFLOATTYPE4(isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);havoc isinf_float_#t~union5;havoc isinf_float_#t~mem4;call ULTIMATE.dealloc(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset);havoc isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset; {211#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~1)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:07,210 INFO L280 TraceCheckUtils]: 9: Hoare triple {211#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~1)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} goto; {211#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~1)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:07,213 INFO L280 TraceCheckUtils]: 10: Hoare triple {211#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~1)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} isinf_float_~ix~1 := ~bvand32(2147483647bv32, isinf_float_~ix~1);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~1 then 1bv32 else 0bv32); {218#(= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:07,214 INFO L280 TraceCheckUtils]: 11: Hoare triple {218#(= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32))} main_#t~ret7 := isinf_float_#res; {222#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret7|)} is VALID [2020-07-28 17:53:07,215 INFO L280 TraceCheckUtils]: 12: Hoare triple {222#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret7|)} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {179#false} is VALID [2020-07-28 17:53:07,216 INFO L280 TraceCheckUtils]: 13: Hoare triple {179#false} assume !false; {179#false} is VALID [2020-07-28 17:53:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:07,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:33,946 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 19 [2020-07-28 17:53:36,038 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32)) (v_skolemized_v_prenex_2_3 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= c_ULTIMATE.start_fabs_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3)))) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)))))) is different from false [2020-07-28 17:53:36,078 INFO L280 TraceCheckUtils]: 13: Hoare triple {179#false} assume !false; {179#false} is VALID [2020-07-28 17:53:36,079 INFO L280 TraceCheckUtils]: 12: Hoare triple {232#(not (= |ULTIMATE.start_main_#t~ret7| (_ bv0 32)))} assume 0bv32 == main_#t~ret7;havoc main_#t~ret7; {179#false} is VALID [2020-07-28 17:53:36,084 INFO L280 TraceCheckUtils]: 11: Hoare triple {236#(not (= |ULTIMATE.start_isinf_float_#res| (_ bv0 32)))} main_#t~ret7 := isinf_float_#res; {232#(not (= |ULTIMATE.start_main_#t~ret7| (_ bv0 32)))} is VALID [2020-07-28 17:53:36,085 INFO L280 TraceCheckUtils]: 10: Hoare triple {240#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~1) (_ bv2155872256 32)) (_ bv0 32))} isinf_float_~ix~1 := ~bvand32(2147483647bv32, isinf_float_~ix~1);isinf_float_#res := (if 2139095040bv32 == isinf_float_~ix~1 then 1bv32 else 0bv32); {236#(not (= |ULTIMATE.start_isinf_float_#res| (_ bv0 32)))} is VALID [2020-07-28 17:53:36,086 INFO L280 TraceCheckUtils]: 9: Hoare triple {240#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~1) (_ bv2155872256 32)) (_ bv0 32))} goto; {240#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~1) (_ bv2155872256 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:36,090 INFO L280 TraceCheckUtils]: 8: Hoare triple {247#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) ULTIMATE.start_isinf_float_~x))))} call isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);call isinf_float_#t~mem4 := read~intINTTYPE4(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);isinf_float_~ix~1 := isinf_float_#t~mem4;call write~intFLOATTYPE4(isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, 4bv32);havoc isinf_float_#t~union5;havoc isinf_float_#t~mem4;call ULTIMATE.dealloc(isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset);havoc isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset; {240#(= (bvadd (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~1) (_ bv2155872256 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:36,092 INFO L280 TraceCheckUtils]: 7: Hoare triple {251#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) |ULTIMATE.start_fabs_float_#res|))))} main_#t~ret6 := fabs_float_#res;main_~res~0 := main_#t~ret6;havoc main_#t~ret6;isinf_float_#in~x := main_~res~0;havoc isinf_float_#res;havoc isinf_float_#t~mem4, isinf_float_#t~union5, isinf_float_~#gf_u~1.base, isinf_float_~#gf_u~1.offset, isinf_float_~x, isinf_float_~ix~1;isinf_float_~x := isinf_float_#in~x;havoc isinf_float_~ix~1; {247#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) ULTIMATE.start_isinf_float_~x))))} is VALID [2020-07-28 17:53:36,093 INFO L280 TraceCheckUtils]: 6: Hoare triple {255#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) ULTIMATE.start_fabs_float_~x))))} fabs_float_#res := fabs_float_~x; {251#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) |ULTIMATE.start_fabs_float_#res|))))} is VALID [2020-07-28 17:53:36,094 INFO L280 TraceCheckUtils]: 5: Hoare triple {255#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) ULTIMATE.start_fabs_float_~x))))} goto; {255#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) ULTIMATE.start_fabs_float_~x))))} is VALID [2020-07-28 17:53:36,097 INFO L280 TraceCheckUtils]: 4: Hoare triple {262#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) (fp ((_ extract 31 31) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 30 23) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 22 0) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)))))))} call fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(~bvand32(2147483647bv32, fabs_float_~ix~0), fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, 4bv32);call fabs_float_#t~mem2 := read~intFLOATTYPE4(fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, 4bv32);fabs_float_~x := fabs_float_#t~mem2;call write~intINTTYPE4(fabs_float_#t~union3, fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, 4bv32);havoc fabs_float_#t~mem2;havoc fabs_float_#t~union3;call ULTIMATE.dealloc(fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset);havoc fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset; {255#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) ULTIMATE.start_fabs_float_~x))))} is VALID [2020-07-28 17:53:36,098 INFO L280 TraceCheckUtils]: 3: Hoare triple {262#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) (fp ((_ extract 31 31) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 30 23) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 22 0) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)))))))} goto; {262#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) (fp ((_ extract 31 31) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 30 23) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 22 0) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)))))))} is VALID [2020-07-28 17:53:36,114 INFO L280 TraceCheckUtils]: 2: Hoare triple {269#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32)) (v_skolemized_v_prenex_2_3 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= ULTIMATE.start_fabs_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3)))) (not (= (fp ((_ extract 31 31) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3)) ((_ extract 30 23) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3)) ((_ extract 22 0) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3))) (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9))))))} call fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(fabs_float_~x, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, 4bv32);call fabs_float_#t~mem0 := read~intINTTYPE4(fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, 4bv32);fabs_float_~ix~0 := fabs_float_#t~mem0;call write~intFLOATTYPE4(fabs_float_#t~union1, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, 4bv32);havoc fabs_float_#t~union1;havoc fabs_float_#t~mem0;call ULTIMATE.dealloc(fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset);havoc fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset; {262#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9)) (fp ((_ extract 31 31) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 30 23) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)) ((_ extract 22 0) (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0)))))))} is VALID [2020-07-28 17:53:36,118 INFO L280 TraceCheckUtils]: 1: Hoare triple {178#true} havoc main_#res;havoc main_#t~ret6, main_#t~ret7, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());fabs_float_#in~x := main_~x~0;havoc fabs_float_#res;havoc fabs_float_#t~mem0, fabs_float_#t~union1, fabs_float_~#gf_u~0.base, fabs_float_~#gf_u~0.offset, fabs_float_#t~mem2, fabs_float_#t~union3, fabs_float_~#sf_u~0.base, fabs_float_~#sf_u~0.offset, fabs_float_~x, fabs_float_~ix~0;fabs_float_~x := fabs_float_#in~x;havoc fabs_float_~ix~0; {269#(forall ((v_ULTIMATE.start_isinf_float_~ix~1_9 (_ BitVec 32)) (v_skolemized_v_prenex_2_3 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_ULTIMATE.start_isinf_float_~ix~1_9)) (not (= ULTIMATE.start_fabs_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3)))) (not (= (fp ((_ extract 31 31) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3)) ((_ extract 30 23) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3)) ((_ extract 22 0) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3))) (fp ((_ extract 31 31) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 30 23) v_ULTIMATE.start_isinf_float_~ix~1_9) ((_ extract 22 0) v_ULTIMATE.start_isinf_float_~ix~1_9))))))} is VALID [2020-07-28 17:53:36,118 INFO L280 TraceCheckUtils]: 0: Hoare triple {178#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {178#true} is VALID [2020-07-28 17:53:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:36,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169668713] [2020-07-28 17:53:36,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:36,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 10] imperfect sequences [] total 17 [2020-07-28 17:53:36,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719961149] [2020-07-28 17:53:36,124 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 14 [2020-07-28 17:53:36,125 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:36,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-28 17:53:36,228 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:36,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-28 17:53:36,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:36,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-28 17:53:36,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=193, Unknown=13, NotChecked=28, Total=272 [2020-07-28 17:53:36,230 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 17 states. [2020-07-28 17:53:40,433 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 34 DAG size of output: 8 [2020-07-28 17:53:47,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:47,895 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-28 17:53:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 17:53:47,896 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 14 [2020-07-28 17:53:47,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-28 17:53:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-07-28 17:53:47,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-28 17:53:47,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2020-07-28 17:53:47,900 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 14 transitions. [2020-07-28 17:53:47,976 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:47,976 INFO L225 Difference]: With dead ends: 15 [2020-07-28 17:53:47,976 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:53:47,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 39.6s TimeCoverageRelationStatistics Valid=130, Invalid=363, Unknown=17, NotChecked=42, Total=552 [2020-07-28 17:53:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:53:47,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:53:47,978 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:47,979 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:47,979 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:47,979 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:47,980 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:47,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:47,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:47,980 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:47,981 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:47,981 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:47,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:47,981 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:47,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:47,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:47,982 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:47,982 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:47,982 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:53:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:53:47,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-28 17:53:47,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:47,985 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:53:47,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-28 17:53:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:47,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:48,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:53:48,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:53:48,441 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:53:48,441 INFO L268 CegarLoopResult]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2020-07-28 17:53:48,442 INFO L264 CegarLoopResult]: At program point L29-2(lines 29 33) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_isinf_float_~x))) [2020-07-28 17:53:48,442 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 33) no Hoare annotation was computed. [2020-07-28 17:53:48,442 INFO L264 CegarLoopResult]: At program point L23(lines 11 24) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x))) [2020-07-28 17:53:48,442 INFO L268 CegarLoopResult]: For program point L50(lines 50 53) no Hoare annotation was computed. [2020-07-28 17:53:48,442 INFO L268 CegarLoopResult]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2020-07-28 17:53:48,443 INFO L264 CegarLoopResult]: At program point L13-2(lines 13 17) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) [2020-07-28 17:53:48,443 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:53:48,443 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:53:48,443 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:53:48,444 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2020-07-28 17:53:48,444 INFO L271 CegarLoopResult]: At program point L55(lines 38 56) the Hoare annotation is: true [2020-07-28 17:53:48,444 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-07-28 17:53:48,444 INFO L268 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-07-28 17:53:48,444 INFO L268 CegarLoopResult]: For program point L18-1(lines 11 24) no Hoare annotation was computed. [2020-07-28 17:53:48,445 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2020-07-28 17:53:48,445 INFO L264 CegarLoopResult]: At program point L35(lines 27 36) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~1)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_isinf_float_~x)) (= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32))) [2020-07-28 17:53:48,450 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:48,450 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:48,450 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 17:53:48,451 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-28 17:53:48,451 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 17:53:48,451 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 17:53:48,451 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-28 17:53:48,451 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-28 17:53:48,452 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 17:53:48,452 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 17:53:48,452 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-28 17:53:48,459 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:53:48,460 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-28 17:53:48,460 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:53:48,460 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:53:48,460 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-28 17:53:48,460 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-28 17:53:48,460 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-28 17:53:48,460 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-28 17:53:48,461 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-28 17:53:48,461 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-28 17:53:48,461 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:48,461 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:48,461 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:53:48,466 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,473 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,479 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,483 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,483 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,484 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:48 BoogieIcfgContainer [2020-07-28 17:53:48,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:48,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:48,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:48,509 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:48,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:05" (3/4) ... [2020-07-28 17:53:48,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:53:48,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-07-28 17:53:48,533 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 17:53:48,533 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:53:48,566 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) [2020-07-28 17:53:48,579 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:53:48,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:48,581 INFO L168 Benchmark]: Toolchain (without parser) took 43844.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 961.6 MB in the beginning and 888.9 MB in the end (delta: 72.6 MB). Peak memory consumption was 236.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,581 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:48,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 961.6 MB in the beginning and 1.2 GB in the end (delta: -198.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,583 INFO L168 Benchmark]: Boogie Preprocessor took 33.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:48,584 INFO L168 Benchmark]: RCFGBuilder took 460.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,585 INFO L168 Benchmark]: TraceAbstraction took 42701.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 895.5 MB in the end (delta: 231.4 MB). Peak memory consumption was 231.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,586 INFO L168 Benchmark]: Witness Printer took 70.20 ms. Allocated memory is still 1.2 GB. Free memory was 895.5 MB in the beginning and 888.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 486.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 961.6 MB in the beginning and 1.2 GB in the end (delta: -198.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 460.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42701.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 895.5 MB in the end (delta: 231.4 MB). Peak memory consumption was 231.4 MB. Max. memory is 11.5 GB. * Witness Printer took 70.20 ms. Allocated memory is still 1.2 GB. Free memory was 895.5 MB in the beginning and 888.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: 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: 13]: Loop Invariant [2020-07-28 17:53:48,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 29]: Loop Invariant [2020-07-28 17:53:48,610 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,610 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,610 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 11]: Loop Invariant [2020-07-28 17:53:48,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant [2020-07-28 17:53:48,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:48,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x)) && ~bvadd64(\result, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 42.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 30 SDslu, 31 SDs, 0 SdLazy, 36 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 39.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 150 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 29.4s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 16 QuantifiedInterpolants, 4152 SizeOfPredicates, 15 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...