./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf96528fb99b321dc7985534169b88f674812cd5 ................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf96528fb99b321dc7985534169b88f674812cd5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:39:52,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:39:52,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:39:52,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:39:52,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:39:52,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:39:52,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:39:52,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:39:52,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:39:52,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:39:52,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:39:52,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:39:52,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:39:52,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:39:52,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:39:52,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:39:52,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:39:52,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:39:52,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:39:52,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:39:52,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:39:52,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:39:52,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:39:52,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:39:52,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:39:52,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:39:52,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:39:52,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:39:52,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:39:52,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:39:52,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:39:52,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:39:52,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:39:52,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:39:52,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:39:52,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:39:52,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:39:52,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:39:52,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:39:52,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:39:52,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:39:52,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:39:52,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:39:52,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:39:52,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:39:52,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:39:52,575 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:39:52,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:39:52,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:39:52,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:39:52,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:39:52,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:39:52,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:39:52,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:39:52,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:39:52,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:39:52,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:39:52,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:39:52,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:39:52,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:39:52,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:39:52,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:39:52,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:39:52,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:39:52,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:39:52,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:39:52,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:39:52,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:39:52,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:39:52,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:39:52,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:39:52,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf96528fb99b321dc7985534169b88f674812cd5 [2020-10-20 00:39:52,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:39:52,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:39:52,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:39:52,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:39:52,810 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:39:52,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-10-20 00:39:52,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e418bee9/aa5c3538ba4a4707be05b60086a5f066/FLAGde0f50c84 [2020-10-20 00:39:53,372 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:39:53,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-10-20 00:39:53,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e418bee9/aa5c3538ba4a4707be05b60086a5f066/FLAGde0f50c84 [2020-10-20 00:39:53,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e418bee9/aa5c3538ba4a4707be05b60086a5f066 [2020-10-20 00:39:53,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:39:53,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:39:53,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:39:53,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:39:53,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:39:53,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:39:53" (1/1) ... [2020-10-20 00:39:53,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf1b169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:53, skipping insertion in model container [2020-10-20 00:39:53,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:39:53" (1/1) ... [2020-10-20 00:39:53,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:39:53,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:39:54,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:39:54,010 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:39:54,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:39:54,055 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:39:54,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54 WrapperNode [2020-10-20 00:39:54,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:39:54,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:39:54,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:39:54,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:39:54,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:39:54,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:39:54,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:39:54,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:39:54,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... [2020-10-20 00:39:54,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:39:54,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:39:54,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:39:54,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:39:54,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:39:54,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:39:54,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:39:54,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:39:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:39:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:39:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:39:54,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:39:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:39:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:39:54,589 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:39:54,589 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-20 00:39:54,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:39:54 BoogieIcfgContainer [2020-10-20 00:39:54,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:39:54,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:39:54,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:39:54,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:39:54,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:39:53" (1/3) ... [2020-10-20 00:39:54,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5124e2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:39:54, skipping insertion in model container [2020-10-20 00:39:54,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:54" (2/3) ... [2020-10-20 00:39:54,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5124e2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:39:54, skipping insertion in model container [2020-10-20 00:39:54,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:39:54" (3/3) ... [2020-10-20 00:39:54,621 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2020-10-20 00:39:54,644 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:39:54,660 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:39:54,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:39:54,757 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:39:54,759 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:39:54,759 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:39:54,760 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:39:54,760 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:39:54,760 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:39:54,761 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:39:54,761 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:39:54,783 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-20 00:39:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:39:54,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:39:54,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:39:54,792 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:39:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:39:54,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-10-20 00:39:54,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:39:54,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144801108] [2020-10-20 00:39:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:39:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:39:54,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:39:54,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144801108] [2020-10-20 00:39:54,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:39:54,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:39:54,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942053716] [2020-10-20 00:39:54,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:39:54,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:39:54,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:39:54,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:39:54,985 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-20 00:39:55,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:39:55,004 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-20 00:39:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:39:55,005 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:39:55,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:39:55,025 INFO L225 Difference]: With dead ends: 49 [2020-10-20 00:39:55,025 INFO L226 Difference]: Without dead ends: 22 [2020-10-20 00:39:55,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:39:55,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-20 00:39:55,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-20 00:39:55,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-20 00:39:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-10-20 00:39:55,062 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-10-20 00:39:55,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:39:55,062 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-10-20 00:39:55,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:39:55,063 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-10-20 00:39:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:39:55,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:39:55,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:39:55,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:39:55,065 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:39:55,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:39:55,065 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-10-20 00:39:55,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:39:55,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398977415] [2020-10-20 00:39:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:39:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:39:55,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:39:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:39:55,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:39:55,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:39:55,194 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:39:55,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:39:55,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:39:55 BoogieIcfgContainer [2020-10-20 00:39:55,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:39:55,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:39:55,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:39:55,230 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:39:55,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:39:54" (3/4) ... [2020-10-20 00:39:55,235 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:39:55,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:39:55,238 INFO L168 Benchmark]: Toolchain (without parser) took 1492.46 ms. Allocated memory was 40.4 MB in the beginning and 43.5 MB in the end (delta: 3.1 MB). Free memory was 18.7 MB in the beginning and 12.6 MB in the end (delta: 6.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,239 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 30.9 MB. Free memory was 7.2 MB in the beginning and 7.2 MB in the end (delta: 43.8 kB). Peak memory consumption was 43.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.00 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 17.8 MB in the beginning and 18.0 MB in the end (delta: -132.2 kB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.60 ms. Allocated memory is still 41.4 MB. Free memory was 18.0 MB in the beginning and 16.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,242 INFO L168 Benchmark]: Boogie Preprocessor took 34.21 ms. Allocated memory is still 41.4 MB. Free memory was 16.0 MB in the beginning and 14.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,243 INFO L168 Benchmark]: RCFGBuilder took 455.65 ms. Allocated memory was 41.4 MB in the beginning and 42.5 MB in the end (delta: 1.0 MB). Free memory was 14.3 MB in the beginning and 10.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,244 INFO L168 Benchmark]: TraceAbstraction took 627.42 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 26.5 MB in the beginning and 13.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,245 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 43.5 MB. Free memory was 12.9 MB in the beginning and 12.6 MB in the end (delta: 305.5 kB). Peak memory consumption was 305.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:39:55,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 30.9 MB. Free memory was 7.2 MB in the beginning and 7.2 MB in the end (delta: 43.8 kB). Peak memory consumption was 43.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 306.00 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 17.8 MB in the beginning and 18.0 MB in the end (delta: -132.2 kB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 44.60 ms. Allocated memory is still 41.4 MB. Free memory was 18.0 MB in the beginning and 16.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 34.21 ms. Allocated memory is still 41.4 MB. Free memory was 16.0 MB in the beginning and 14.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 455.65 ms. Allocated memory was 41.4 MB in the beginning and 42.5 MB in the end (delta: 1.0 MB). Free memory was 14.3 MB in the beginning and 10.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 627.42 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 26.5 MB in the beginning and 13.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 14.3 GB. * Witness Printer took 5.34 ms. Allocated memory is still 43.5 MB. Free memory was 12.9 MB in the beginning and 12.6 MB in the end (delta: 305.5 kB). Peak memory consumption was 305.5 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of bitwiseAnd at line 21, overapproximation of someUnaryFLOAToperation at line 64, overapproximation of someBinaryArithmeticFLOAToperation at line 40. Possible FailurePath: [L64] float x = -0.0f; [L15] __int32_t signbit, w, exponent_less_127; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L23] COND FALSE !(exponent_less_127 < 23) [L39] COND TRUE exponent_less_127 == 255 [L40] return x + x; [L65] float res = trunc_float(x); [L68] EXPR res == -0.0f && __signbit_float(res) == 1 [L68] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L4] __assert_fail("0", "float_req_bl_1072d.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 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=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:39:57,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:39:57,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:39:57,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:39:57,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:39:57,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:39:57,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:39:57,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:39:57,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:39:57,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:39:57,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:39:57,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:39:57,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:39:57,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:39:57,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:39:57,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:39:57,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:39:57,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:39:57,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:39:57,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:39:57,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:39:57,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:39:57,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:39:57,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:39:57,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:39:57,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:39:57,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:39:57,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:39:57,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:39:57,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:39:57,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:39:57,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:39:57,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:39:57,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:39:57,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:39:57,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:39:57,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:39:57,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:39:57,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:39:57,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:39:57,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:39:57,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:39:57,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:39:57,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:39:57,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:39:57,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:39:57,613 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:39:57,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:39:57,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:39:57,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:39:57,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:39:57,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:39:57,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:39:57,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:39:57,616 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:39:57,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:39:57,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:39:57,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:39:57,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:39:57,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:39:57,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:39:57,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:39:57,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:39:57,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:39:57,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:39:57,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:39:57,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:39:57,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:39:57,619 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:39:57,620 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:39:57,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:39:57,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:39:57,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:39:57,621 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf96528fb99b321dc7985534169b88f674812cd5 [2020-10-20 00:39:57,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:39:57,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:39:57,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:39:57,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:39:57,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:39:57,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-10-20 00:39:57,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360f2d1c4/98269ae2a1c14dc3a1def934b5857c1f/FLAGefb866c1c [2020-10-20 00:39:58,365 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:39:58,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-10-20 00:39:58,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360f2d1c4/98269ae2a1c14dc3a1def934b5857c1f/FLAGefb866c1c [2020-10-20 00:39:58,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360f2d1c4/98269ae2a1c14dc3a1def934b5857c1f [2020-10-20 00:39:58,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:39:58,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:39:58,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:39:58,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:39:58,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:39:58,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:39:58" (1/1) ... [2020-10-20 00:39:58,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdf81d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:58, skipping insertion in model container [2020-10-20 00:39:58,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:39:58" (1/1) ... [2020-10-20 00:39:58,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:39:58,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:39:59,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:39:59,044 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:39:59,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:39:59,098 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:39:59,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59 WrapperNode [2020-10-20 00:39:59,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:39:59,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:39:59,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:39:59,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:39:59,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:39:59,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:39:59,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:39:59,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:39:59,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (1/1) ... [2020-10-20 00:39:59,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:39:59,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:39:59,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:39:59,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:39:59,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (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 [2020-10-20 00:39:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:39:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:39:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-20 00:39:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:39:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:39:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:39:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-20 00:39:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:39:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:39:59,604 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:39:59,605 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-20 00:39:59,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:39:59 BoogieIcfgContainer [2020-10-20 00:39:59,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:39:59,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:39:59,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:39:59,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:39:59,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:39:58" (1/3) ... [2020-10-20 00:39:59,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6da38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:39:59, skipping insertion in model container [2020-10-20 00:39:59,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:39:59" (2/3) ... [2020-10-20 00:39:59,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6da38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:39:59, skipping insertion in model container [2020-10-20 00:39:59,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:39:59" (3/3) ... [2020-10-20 00:39:59,632 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2020-10-20 00:39:59,646 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:39:59,656 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:39:59,675 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:39:59,702 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:39:59,703 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:39:59,703 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:39:59,703 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:39:59,704 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:39:59,704 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:39:59,704 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:39:59,704 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:39:59,726 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-20 00:39:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:39:59,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:39:59,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:39:59,754 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:39:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:39:59,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-10-20 00:39:59,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:39:59,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712156652] [2020-10-20 00:39:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:39:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:39:59,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:39:59,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:39:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:39:59,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:39:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:39:59,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712156652] [2020-10-20 00:39:59,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:39:59,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:39:59,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678698117] [2020-10-20 00:39:59,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:39:59,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:39:59,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:39:59,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:39:59,929 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-20 00:39:59,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:39:59,947 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-20 00:39:59,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:39:59,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:39:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:39:59,959 INFO L225 Difference]: With dead ends: 49 [2020-10-20 00:39:59,959 INFO L226 Difference]: Without dead ends: 22 [2020-10-20 00:39:59,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:39:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-20 00:39:59,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-20 00:39:59,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-20 00:39:59,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-10-20 00:40:00,000 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-10-20 00:40:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:40:00,001 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-10-20 00:40:00,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:40:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-10-20 00:40:00,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:40:00,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:40:00,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:40:00,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:40:00,215 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:40:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:40:00,216 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-10-20 00:40:00,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:40:00,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795956948] [2020-10-20 00:40:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 00:40:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:40:00,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:40:00,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:40:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:40:00,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:40:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:40:00,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795956948] [2020-10-20 00:40:00,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:40:00,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:40:00,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492338304] [2020-10-20 00:40:00,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:40:00,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:40:00,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:40:00,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:40:00,495 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2020-10-20 00:40:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:40:00,623 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-10-20 00:40:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:40:00,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-20 00:40:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:40:00,625 INFO L225 Difference]: With dead ends: 32 [2020-10-20 00:40:00,625 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 00:40:00,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-20 00:40:00,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 00:40:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 00:40:00,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 00:40:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-20 00:40:00,632 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2020-10-20 00:40:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:40:00,633 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-20 00:40:00,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:40:00,633 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-20 00:40:00,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:40:00,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:40:00,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:40:00,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:40:00,849 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:40:00,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:40:00,849 INFO L82 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2020-10-20 00:40:00,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:40:00,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244866638] [2020-10-20 00:40:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 00:40:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:40:00,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 00:40:00,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:40:01,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:40:01,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:40:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:40:01,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244866638] [2020-10-20 00:40:01,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:40:01,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-20 00:40:01,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380191939] [2020-10-20 00:40:01,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 00:40:01,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:40:01,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 00:40:01,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-20 00:40:01,074 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 9 states. [2020-10-20 00:40:01,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:40:01,305 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-20 00:40:01,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:40:01,306 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-10-20 00:40:01,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:40:01,307 INFO L225 Difference]: With dead ends: 22 [2020-10-20 00:40:01,307 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 00:40:01,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:40:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 00:40:01,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 00:40:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 00:40:01,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-10-20 00:40:01,314 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2020-10-20 00:40:01,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:40:01,315 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-10-20 00:40:01,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 00:40:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-10-20 00:40:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 00:40:01,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:40:01,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:40:01,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:40:01,529 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:40:01,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:40:01,530 INFO L82 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2020-10-20 00:40:01,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:40:01,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625104187] [2020-10-20 00:40:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 00:40:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:40:01,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-20 00:40:01,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:40:01,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:40:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:40:01,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:40:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:40:02,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625104187] [2020-10-20 00:40:02,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:40:02,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2020-10-20 00:40:02,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100183891] [2020-10-20 00:40:02,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-20 00:40:02,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:40:02,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-20 00:40:02,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-20 00:40:02,300 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 18 states. [2020-10-20 00:40:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:40:02,682 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-10-20 00:40:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 00:40:02,684 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2020-10-20 00:40:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:40:02,685 INFO L225 Difference]: With dead ends: 19 [2020-10-20 00:40:02,685 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:40:02,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-10-20 00:40:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:40:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:40:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:40:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:40:02,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-20 00:40:02,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:40:02,687 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:40:02,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-20 00:40:02,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:40:02,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:40:02,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:40:02,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:40:03,281 INFO L274 CegarLoopResult]: For program point L23(lines 23 41) no Hoare annotation was computed. [2020-10-20 00:40:03,281 INFO L274 CegarLoopResult]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2020-10-20 00:40:03,282 INFO L274 CegarLoopResult]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2020-10-20 00:40:03,282 INFO L270 CegarLoopResult]: At program point L48-2(lines 48 52) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short17| (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (= |ULTIMATE.start_trunc_float_#res| .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_trunc_float_~x .cse0))) [2020-10-20 00:40:03,282 INFO L274 CegarLoopResult]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2020-10-20 00:40:03,282 INFO L277 CegarLoopResult]: At program point L73(lines 57 74) the Hoare annotation is: true [2020-10-20 00:40:03,282 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:40:03,283 INFO L274 CegarLoopResult]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2020-10-20 00:40:03,283 INFO L270 CegarLoopResult]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2020-10-20 00:40:03,283 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:40:03,283 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:40:03,283 INFO L274 CegarLoopResult]: For program point L24(lines 24 37) no Hoare annotation was computed. [2020-10-20 00:40:03,283 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 00:40:03,283 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-10-20 00:40:03,284 INFO L270 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (= ULTIMATE.start_trunc_float_~x (fp.neg (_ +zero 8 24))) [2020-10-20 00:40:03,284 INFO L274 CegarLoopResult]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2020-10-20 00:40:03,285 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-20 00:40:03,285 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-10-20 00:40:03,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:40:03,286 INFO L270 CegarLoopResult]: At program point L54(lines 45 55) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short17| (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_trunc_float_#res| .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))) (= .cse0 ULTIMATE.start_main_~res~0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= ULTIMATE.start_trunc_float_~x .cse0))) [2020-10-20 00:40:03,286 INFO L270 CegarLoopResult]: At program point L42(lines 14 43) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (= |ULTIMATE.start_trunc_float_#res| .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))) (= ULTIMATE.start_trunc_float_~x .cse0))) [2020-10-20 00:40:03,286 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-10-20 00:40:03,287 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))) (= ULTIMATE.start_trunc_float_~x .cse0))) [2020-10-20 00:40:03,287 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-10-20 00:40:03,287 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-20 00:40:03,287 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2020-10-20 00:40:03,300 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:40:03 BoogieIcfgContainer [2020-10-20 00:40:03,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:40:03,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:40:03,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:40:03,330 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:40:03,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:39:59" (3/4) ... [2020-10-20 00:40:03,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:40:03,347 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-20 00:40:03,348 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:40:03,348 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 00:40:03,348 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:40:03,378 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-10-20 00:40:03,379 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-10-20 00:40:03,379 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-10-20 00:40:03,380 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-10-20 00:40:03,412 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:40:03,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:40:03,414 INFO L168 Benchmark]: Toolchain (without parser) took 4686.27 ms. Allocated memory was 35.1 MB in the beginning and 57.1 MB in the end (delta: 22.0 MB). Free memory was 13.1 MB in the beginning and 15.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,415 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 34.1 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 35.3 kB). Peak memory consumption was 35.3 kB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.75 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 12.2 MB in the beginning and 22.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.37 ms. Allocated memory is still 43.5 MB. Free memory was 22.8 MB in the beginning and 20.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,417 INFO L168 Benchmark]: Boogie Preprocessor took 39.82 ms. Allocated memory is still 43.5 MB. Free memory was 20.7 MB in the beginning and 18.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,418 INFO L168 Benchmark]: RCFGBuilder took 422.12 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 18.9 MB in the beginning and 10.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,419 INFO L168 Benchmark]: TraceAbstraction took 3719.50 ms. Allocated memory was 45.1 MB in the beginning and 57.1 MB in the end (delta: 12.1 MB). Free memory was 10.2 MB in the beginning and 19.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,419 INFO L168 Benchmark]: Witness Printer took 82.10 ms. Allocated memory is still 57.1 MB. Free memory was 19.9 MB in the beginning and 15.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:40:03,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 34.1 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 35.3 kB). Peak memory consumption was 35.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 364.75 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 12.2 MB in the beginning and 22.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 46.37 ms. Allocated memory is still 43.5 MB. Free memory was 22.8 MB in the beginning and 20.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.82 ms. Allocated memory is still 43.5 MB. Free memory was 20.7 MB in the beginning and 18.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 422.12 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 18.9 MB in the beginning and 10.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3719.50 ms. Allocated memory was 45.1 MB in the beginning and 57.1 MB in the end (delta: 12.1 MB). Free memory was 10.2 MB in the beginning and 19.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Witness Printer took 82.10 ms. Allocated memory is still 57.1 MB. Free memory was 19.9 MB in the beginning and 15.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 14]: Loop Invariant [2020-10-20 00:40:03,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 45]: Loop Invariant [2020-10-20 00:40:03,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,453 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,453 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,455 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,455 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 26]: Loop Invariant [2020-10-20 00:40:03,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 48]: Loop Invariant [2020-10-20 00:40:03,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-10-20 00:40:03,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 163 SDslu, 77 SDs, 0 SdLazy, 77 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 263 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 93 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 22 QuantifiedInterpolants, 9249 SizeOfPredicates, 27 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...