./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:53:43,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:43,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:43,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:43,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:43,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:43,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:43,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:43,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:43,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:43,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:43,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:43,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:43,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:43,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:43,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:43,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:43,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:43,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:43,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:43,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:43,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:43,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:43,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:43,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:43,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:43,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:43,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:43,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:43,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:43,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:43,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:43,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:43,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:43,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:43,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:43,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:43,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:43,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:43,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:43,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:43,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:53:43,733 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:43,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:43,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:43,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:43,740 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:43,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:43,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:43,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:53:43,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:43,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:43,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:43,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:43,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:43,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:43,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:43,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:43,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:43,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:43,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:43,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:43,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:43,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:43,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:43,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:43,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:43,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:53:43,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:53:43,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:43,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:43,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2020-07-28 17:53:44,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:44,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:44,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:44,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:44,074 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:44,074 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2020-07-28 17:53:44,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9821501dc/b9f16f10a8b84dccbc1f3ed19ad8c1a5/FLAG3f9066101 [2020-07-28 17:53:44,528 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:44,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2020-07-28 17:53:44,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9821501dc/b9f16f10a8b84dccbc1f3ed19ad8c1a5/FLAG3f9066101 [2020-07-28 17:53:44,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9821501dc/b9f16f10a8b84dccbc1f3ed19ad8c1a5 [2020-07-28 17:53:44,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:44,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:44,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:44,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:44,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:44,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:44" (1/1) ... [2020-07-28 17:53:44,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64643bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:44, skipping insertion in model container [2020-07-28 17:53:44,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:44" (1/1) ... [2020-07-28 17:53:44,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:45,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:45,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:45,230 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:45,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:45,305 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:45,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45 WrapperNode [2020-07-28 17:53:45,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:45,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:45,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:45,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:45,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:45,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:45,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:45,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:45,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... [2020-07-28 17:53:45,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:45,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:45,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:45,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:45,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:45,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:53:45,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:53:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:53:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:53:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:46,098 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:46,098 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-28 17:53:46,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:46 BoogieIcfgContainer [2020-07-28 17:53:46,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:46,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:46,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:46,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:46,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:44" (1/3) ... [2020-07-28 17:53:46,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54051d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:46, skipping insertion in model container [2020-07-28 17:53:46,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:45" (2/3) ... [2020-07-28 17:53:46,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54051d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:46, skipping insertion in model container [2020-07-28 17:53:46,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:46" (3/3) ... [2020-07-28 17:53:46,113 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2020-07-28 17:53:46,125 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:46,132 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:46,144 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:46,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:46,167 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:46,167 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:46,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:46,171 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:46,172 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:46,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:46,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:46,191 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-28 17:53:46,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:46,196 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:46,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:46,198 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:46,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:46,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-07-28 17:53:46,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:46,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298659584] [2020-07-28 17:53:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:46,332 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {28#true} is VALID [2020-07-28 17:53:46,333 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := 0.0;trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {28#true} is VALID [2020-07-28 17:53:46,335 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#true} assume !true; {29#false} is VALID [2020-07-28 17:53:46,335 INFO L280 TraceCheckUtils]: 3: Hoare triple {29#false} trunc_float_~signbit~0 := (if ~bitwiseAnd(trunc_float_~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(trunc_float_~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(trunc_float_~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);trunc_float_~exponent_less_127~0 := ~bitwiseAnd(trunc_float_~w~0, 2139095040) / 8388608 - 127; {29#false} is VALID [2020-07-28 17:53:46,335 INFO L280 TraceCheckUtils]: 4: Hoare triple {29#false} assume !(trunc_float_~exponent_less_127~0 < 23); {29#false} is VALID [2020-07-28 17:53:46,336 INFO L280 TraceCheckUtils]: 5: Hoare triple {29#false} assume 255 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~someBinaryArithmeticFLOAToperation(trunc_float_~x, trunc_float_~x); {29#false} is VALID [2020-07-28 17:53:46,336 INFO L280 TraceCheckUtils]: 6: Hoare triple {29#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~someBinaryFLOATComparisonOperation(main_~res~0, 0.0); {29#false} is VALID [2020-07-28 17:53:46,336 INFO L280 TraceCheckUtils]: 7: Hoare triple {29#false} assume !main_#t~short10; {29#false} is VALID [2020-07-28 17:53:46,337 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#false} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {29#false} is VALID [2020-07-28 17:53:46,337 INFO L280 TraceCheckUtils]: 9: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-28 17:53:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:46,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298659584] [2020-07-28 17:53:46,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:46,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:53:46,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584994391] [2020-07-28 17:53:46,348 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:46,350 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:46,353 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:46,397 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:46,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:46,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:53:46,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:46,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:46,411 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-07-28 17:53:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:46,488 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2020-07-28 17:53:46,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:46,488 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:46,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:46,513 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 72 transitions. [2020-07-28 17:53:46,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:46,744 INFO L225 Difference]: With dead ends: 48 [2020-07-28 17:53:46,744 INFO L226 Difference]: Without dead ends: 22 [2020-07-28 17:53:46,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:46,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-28 17:53:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-28 17:53:46,788 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:46,788 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:46,789 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:46,789 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:46,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:46,793 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:46,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:46,795 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:46,795 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:46,795 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:46,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:46,799 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:46,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:46,800 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:46,800 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:46,800 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:46,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-28 17:53:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-07-28 17:53:46,805 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-07-28 17:53:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:46,805 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-07-28 17:53:46,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:46,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:46,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:46,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:46,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:53:46,808 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:46,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:46,808 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-07-28 17:53:46,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:46,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529543615] [2020-07-28 17:53:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:46,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:53:46,904 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:53:46,913 INFO L168 Benchmark]: Toolchain (without parser) took 1961.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -101.9 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:46,914 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:46,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.26 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:46,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:46,916 INFO L168 Benchmark]: Boogie Preprocessor took 37.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:46,917 INFO L168 Benchmark]: RCFGBuilder took 629.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:46,918 INFO L168 Benchmark]: TraceAbstraction took 805.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:46,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 348.26 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 128.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 629.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 805.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:53:48,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:48,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:49,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:49,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:49,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:49,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:49,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:49,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:49,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:49,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:49,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:49,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:49,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:49,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:49,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:49,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:49,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:49,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:49,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:49,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:49,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:49,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:49,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:49,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:49,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:49,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:49,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:49,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:49,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:49,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:49,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:49,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:49,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:49,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:49,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:49,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:49,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:49,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:49,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:49,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:49,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:53:49,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:49,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:49,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:49,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:49,074 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:49,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:49,074 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:49,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:49,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:49,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:49,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:49,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:49,076 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:53:49,076 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:53:49,077 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:49,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:49,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:49,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:49,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:49,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:49,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:49,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:49,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:49,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:49,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:49,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:49,081 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:53:49,081 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:53:49,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:49,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:49,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:53:49,082 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2020-07-28 17:53:49,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:49,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:49,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:49,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:49,423 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:49,424 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2020-07-28 17:53:49,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c93764a/dcfa8545154b425383b481e744180126/FLAG5efff88a0 [2020-07-28 17:53:49,901 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:49,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2020-07-28 17:53:49,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c93764a/dcfa8545154b425383b481e744180126/FLAG5efff88a0 [2020-07-28 17:53:50,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c93764a/dcfa8545154b425383b481e744180126 [2020-07-28 17:53:50,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:50,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:50,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:50,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:50,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:50,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6bfb52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50, skipping insertion in model container [2020-07-28 17:53:50,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:50,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:50,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:50,606 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:50,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:50,727 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:50,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50 WrapperNode [2020-07-28 17:53:50,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:50,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:50,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:50,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:50,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:50,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:50,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:50,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:50,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... [2020-07-28 17:53:50,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:50,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:50,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:50,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:50,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:53:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:53:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:53:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:53:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:51,486 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:51,487 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-28 17:53:51,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:51 BoogieIcfgContainer [2020-07-28 17:53:51,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:51,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:51,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:51,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:51,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:50" (1/3) ... [2020-07-28 17:53:51,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c69d9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:51, skipping insertion in model container [2020-07-28 17:53:51,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:50" (2/3) ... [2020-07-28 17:53:51,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c69d9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:51, skipping insertion in model container [2020-07-28 17:53:51,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:51" (3/3) ... [2020-07-28 17:53:51,503 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2020-07-28 17:53:51,514 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:51,521 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:51,531 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:51,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:51,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:51,550 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:51,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:51,551 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:51,551 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:51,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:51,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-28 17:53:51,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:51,572 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:51,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:51,573 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:51,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:51,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-07-28 17:53:51,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:51,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590602587] [2020-07-28 17:53:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 17:53:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:51,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:53:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:51,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:51,733 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {28#true} is VALID [2020-07-28 17:53:51,733 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {28#true} is VALID [2020-07-28 17:53:51,735 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#true} assume !true; {29#false} is VALID [2020-07-28 17:53:51,735 INFO L280 TraceCheckUtils]: 3: Hoare triple {29#false} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {29#false} is VALID [2020-07-28 17:53:51,735 INFO L280 TraceCheckUtils]: 4: Hoare triple {29#false} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {29#false} is VALID [2020-07-28 17:53:51,736 INFO L280 TraceCheckUtils]: 5: Hoare triple {29#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {29#false} is VALID [2020-07-28 17:53:51,736 INFO L280 TraceCheckUtils]: 6: Hoare triple {29#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {29#false} is VALID [2020-07-28 17:53:51,736 INFO L280 TraceCheckUtils]: 7: Hoare triple {29#false} assume !main_#t~short10; {29#false} is VALID [2020-07-28 17:53:51,737 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#false} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {29#false} is VALID [2020-07-28 17:53:51,737 INFO L280 TraceCheckUtils]: 9: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-28 17:53:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:51,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:51,763 INFO L280 TraceCheckUtils]: 9: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-28 17:53:51,763 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#false} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {29#false} is VALID [2020-07-28 17:53:51,764 INFO L280 TraceCheckUtils]: 7: Hoare triple {29#false} assume !main_#t~short10; {29#false} is VALID [2020-07-28 17:53:51,765 INFO L280 TraceCheckUtils]: 6: Hoare triple {29#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {29#false} is VALID [2020-07-28 17:53:51,765 INFO L280 TraceCheckUtils]: 5: Hoare triple {29#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {29#false} is VALID [2020-07-28 17:53:51,768 INFO L280 TraceCheckUtils]: 4: Hoare triple {29#false} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {29#false} is VALID [2020-07-28 17:53:51,768 INFO L280 TraceCheckUtils]: 3: Hoare triple {29#false} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {29#false} is VALID [2020-07-28 17:53:51,770 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#true} assume !true; {29#false} is VALID [2020-07-28 17:53:51,771 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {28#true} is VALID [2020-07-28 17:53:51,771 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {28#true} is VALID [2020-07-28 17:53:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:51,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590602587] [2020-07-28 17:53:51,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:51,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:53:51,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102927510] [2020-07-28 17:53:51,783 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:51,786 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:51,790 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:51,852 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:51,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:51,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:51,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:51,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:51,866 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-07-28 17:53:51,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:51,974 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2020-07-28 17:53:51,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:51,974 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:51,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:51,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:51,986 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 72 transitions. [2020-07-28 17:53:52,151 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:52,166 INFO L225 Difference]: With dead ends: 48 [2020-07-28 17:53:52,166 INFO L226 Difference]: Without dead ends: 22 [2020-07-28 17:53:52,171 INFO L675 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 [2020-07-28 17:53:52,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-28 17:53:52,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-28 17:53:52,228 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:52,229 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:52,229 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:52,229 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:52,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:52,233 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:52,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:52,234 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:52,234 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:52,234 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:52,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:52,238 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:52,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:52,239 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:52,239 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:52,239 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-28 17:53:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-07-28 17:53:52,243 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-07-28 17:53:52,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:52,244 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-07-28 17:53:52,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:52,244 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:52,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:52,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:52,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:53:52,459 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:52,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:52,461 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-07-28 17:53:52,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:52,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674742299] [2020-07-28 17:53:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 17:53:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:52,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:53:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:52,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:52,677 INFO L280 TraceCheckUtils]: 0: Hoare triple {220#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {220#true} is VALID [2020-07-28 17:53:52,679 INFO L280 TraceCheckUtils]: 1: Hoare triple {220#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {228#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:52,684 INFO L280 TraceCheckUtils]: 2: Hoare triple {228#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {232#(= (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)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:52,686 INFO L280 TraceCheckUtils]: 3: Hoare triple {232#(= (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)) (_ +zero 8 24))} goto; {232#(= (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)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:52,690 INFO L280 TraceCheckUtils]: 4: Hoare triple {232#(= (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)) (_ +zero 8 24))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {239#(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)) (_ +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)))} is VALID [2020-07-28 17:53:52,693 INFO L280 TraceCheckUtils]: 5: Hoare triple {239#(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)) (_ +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)))} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {221#false} is VALID [2020-07-28 17:53:52,694 INFO L280 TraceCheckUtils]: 6: Hoare triple {221#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {221#false} is VALID [2020-07-28 17:53:52,694 INFO L280 TraceCheckUtils]: 7: Hoare triple {221#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {221#false} is VALID [2020-07-28 17:53:52,695 INFO L280 TraceCheckUtils]: 8: Hoare triple {221#false} assume !main_#t~short10; {221#false} is VALID [2020-07-28 17:53:52,695 INFO L280 TraceCheckUtils]: 9: Hoare triple {221#false} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {221#false} is VALID [2020-07-28 17:53:52,696 INFO L280 TraceCheckUtils]: 10: Hoare triple {221#false} assume !false; {221#false} is VALID [2020-07-28 17:53:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:52,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:52,866 INFO L280 TraceCheckUtils]: 10: Hoare triple {221#false} assume !false; {221#false} is VALID [2020-07-28 17:53:52,866 INFO L280 TraceCheckUtils]: 9: Hoare triple {221#false} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {221#false} is VALID [2020-07-28 17:53:52,867 INFO L280 TraceCheckUtils]: 8: Hoare triple {221#false} assume !main_#t~short10; {221#false} is VALID [2020-07-28 17:53:52,867 INFO L280 TraceCheckUtils]: 7: Hoare triple {221#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {221#false} is VALID [2020-07-28 17:53:52,868 INFO L280 TraceCheckUtils]: 6: Hoare triple {221#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {221#false} is VALID [2020-07-28 17:53:52,870 INFO L280 TraceCheckUtils]: 5: Hoare triple {273#(bvslt ULTIMATE.start_trunc_float_~exponent_less_127~0 (_ bv23 32))} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {221#false} is VALID [2020-07-28 17:53:52,873 INFO L280 TraceCheckUtils]: 4: Hoare triple {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {273#(bvslt ULTIMATE.start_trunc_float_~exponent_less_127~0 (_ bv23 32))} is VALID [2020-07-28 17:53:52,874 INFO L280 TraceCheckUtils]: 3: Hoare triple {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} goto; {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} is VALID [2020-07-28 17:53:52,881 INFO L280 TraceCheckUtils]: 2: Hoare triple {284#(forall ((v_skolemized_v_prenex_2_3 (_ BitVec 32))) (or (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_2_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)) (not (= ULTIMATE.start_trunc_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3))))))} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} is VALID [2020-07-28 17:53:52,885 INFO L280 TraceCheckUtils]: 1: Hoare triple {220#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {284#(forall ((v_skolemized_v_prenex_2_3 (_ BitVec 32))) (or (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_2_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)) (not (= ULTIMATE.start_trunc_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3))))))} is VALID [2020-07-28 17:53:52,885 INFO L280 TraceCheckUtils]: 0: Hoare triple {220#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {220#true} is VALID [2020-07-28 17:53:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:52,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674742299] [2020-07-28 17:53:52,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:52,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:53:52,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010483378] [2020-07-28 17:53:52,889 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-07-28 17:53:52,890 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:52,890 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:53:52,952 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:52,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:53:52,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:52,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:53:52,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:53:52,954 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2020-07-28 17:53:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:53,415 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-28 17:53:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 17:53:53,416 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-07-28 17:53:53,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2020-07-28 17:53:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:53,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2020-07-28 17:53:53,427 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 35 transitions. [2020-07-28 17:53:53,536 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:53,538 INFO L225 Difference]: With dead ends: 32 [2020-07-28 17:53:53,538 INFO L226 Difference]: Without dead ends: 19 [2020-07-28 17:53:53,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-07-28 17:53:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-28 17:53:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-28 17:53:53,561 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:53,561 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:53,561 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:53,561 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:53,564 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-28 17:53:53,564 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-28 17:53:53,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:53,565 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:53,565 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:53,565 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:53,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:53,567 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-28 17:53:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-28 17:53:53,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:53,569 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:53,569 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:53,569 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:53,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-28 17:53:53,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-07-28 17:53:53,571 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2020-07-28 17:53:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:53,572 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-07-28 17:53:53,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:53:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-28 17:53:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:53:53,573 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:53,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:53,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:53:53,787 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:53,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:53,788 INFO L82 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2020-07-28 17:53:53,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:53,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843602082] [2020-07-28 17:53:53,790 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 [2020-07-28 17:53:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:53,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:53:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:53,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:54,024 INFO L280 TraceCheckUtils]: 0: Hoare triple {399#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {399#true} is VALID [2020-07-28 17:53:54,025 INFO L280 TraceCheckUtils]: 1: Hoare triple {399#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {407#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:54,028 INFO L280 TraceCheckUtils]: 2: Hoare triple {407#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {411#(= (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)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,029 INFO L280 TraceCheckUtils]: 3: Hoare triple {411#(= (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)) (_ +zero 8 24))} goto; {411#(= (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)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,031 INFO L280 TraceCheckUtils]: 4: Hoare triple {411#(= (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)) (_ +zero 8 24))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {418#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:54,031 INFO L280 TraceCheckUtils]: 5: Hoare triple {418#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {418#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:54,032 INFO L280 TraceCheckUtils]: 6: Hoare triple {418#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {418#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:54,036 INFO L280 TraceCheckUtils]: 7: Hoare triple {418#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~mem2;havoc trunc_float_#t~union3;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {407#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:54,037 INFO L280 TraceCheckUtils]: 8: Hoare triple {407#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} goto; {407#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:54,044 INFO L280 TraceCheckUtils]: 9: Hoare triple {407#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} trunc_float_#res := trunc_float_~x; {434#(= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|)} is VALID [2020-07-28 17:53:54,048 INFO L280 TraceCheckUtils]: 10: Hoare triple {434#(= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|)} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {438#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:54,049 INFO L280 TraceCheckUtils]: 11: Hoare triple {438#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10; {438#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:54,051 INFO L280 TraceCheckUtils]: 12: Hoare triple {438#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {400#false} is VALID [2020-07-28 17:53:54,051 INFO L280 TraceCheckUtils]: 13: Hoare triple {400#false} assume !false; {400#false} is VALID [2020-07-28 17:53:54,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:54,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:54,151 INFO L280 TraceCheckUtils]: 13: Hoare triple {400#false} assume !false; {400#false} is VALID [2020-07-28 17:53:54,153 INFO L280 TraceCheckUtils]: 12: Hoare triple {438#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {400#false} is VALID [2020-07-28 17:53:54,154 INFO L280 TraceCheckUtils]: 11: Hoare triple {438#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10; {438#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:54,154 INFO L280 TraceCheckUtils]: 10: Hoare triple {457#(fp.eq |ULTIMATE.start_trunc_float_#res| (_ +zero 8 24))} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {438#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:54,155 INFO L280 TraceCheckUtils]: 9: Hoare triple {461#(fp.eq ULTIMATE.start_trunc_float_~x (_ +zero 8 24))} trunc_float_#res := trunc_float_~x; {457#(fp.eq |ULTIMATE.start_trunc_float_#res| (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,158 INFO L280 TraceCheckUtils]: 8: Hoare triple {461#(fp.eq ULTIMATE.start_trunc_float_~x (_ +zero 8 24))} goto; {461#(fp.eq ULTIMATE.start_trunc_float_~x (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,159 INFO L280 TraceCheckUtils]: 7: Hoare triple {468#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (_ +zero 8 24))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~mem2;havoc trunc_float_#t~union3;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {461#(fp.eq ULTIMATE.start_trunc_float_~x (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,161 INFO L280 TraceCheckUtils]: 6: Hoare triple {468#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (_ +zero 8 24))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {468#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,161 INFO L280 TraceCheckUtils]: 5: Hoare triple {468#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (_ +zero 8 24))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {468#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,163 INFO L280 TraceCheckUtils]: 4: Hoare triple {399#true} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {468#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:54,163 INFO L280 TraceCheckUtils]: 3: Hoare triple {399#true} goto; {399#true} is VALID [2020-07-28 17:53:54,163 INFO L280 TraceCheckUtils]: 2: Hoare triple {399#true} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {399#true} is VALID [2020-07-28 17:53:54,163 INFO L280 TraceCheckUtils]: 1: Hoare triple {399#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {399#true} is VALID [2020-07-28 17:53:54,164 INFO L280 TraceCheckUtils]: 0: Hoare triple {399#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {399#true} is VALID [2020-07-28 17:53:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:54,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843602082] [2020-07-28 17:53:54,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:54,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 10 [2020-07-28 17:53:54,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189400595] [2020-07-28 17:53:54,166 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-07-28 17:53:54,166 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:54,167 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:53:54,215 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:54,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:53:54,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:54,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:53:54,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:53:54,217 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2020-07-28 17:53:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:54,663 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-07-28 17:53:54,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 17:53:54,663 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-07-28 17:53:54,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:53:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2020-07-28 17:53:54,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:53:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2020-07-28 17:53:54,669 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 21 transitions. [2020-07-28 17:53:54,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:54,732 INFO L225 Difference]: With dead ends: 22 [2020-07-28 17:53:54,733 INFO L226 Difference]: Without dead ends: 19 [2020-07-28 17:53:54,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-07-28 17:53:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-28 17:53:54,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-28 17:53:54,747 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:54,748 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:54,748 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:54,748 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:54,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:54,749 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-07-28 17:53:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-07-28 17:53:54,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:54,750 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:54,750 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:54,750 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:54,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:54,752 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-07-28 17:53:54,752 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-07-28 17:53:54,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:54,753 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:54,753 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:54,753 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:54,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-28 17:53:54,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-07-28 17:53:54,754 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2020-07-28 17:53:54,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:54,755 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-07-28 17:53:54,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:53:54,755 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-07-28 17:53:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 17:53:54,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:54,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:54,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:53:54,966 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:54,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:54,967 INFO L82 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2020-07-28 17:53:54,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:54,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725116881] [2020-07-28 17:53:54,969 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 [2020-07-28 17:53:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:55,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-28 17:53:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:55,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:55,212 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:53:55,264 INFO L280 TraceCheckUtils]: 0: Hoare triple {586#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {586#true} is VALID [2020-07-28 17:53:55,265 INFO L280 TraceCheckUtils]: 1: Hoare triple {586#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {594#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:55,267 INFO L280 TraceCheckUtils]: 2: Hoare triple {594#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {598#(= (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)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:55,268 INFO L280 TraceCheckUtils]: 3: Hoare triple {598#(= (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)) (_ +zero 8 24))} goto; {598#(= (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)) (_ +zero 8 24))} is VALID [2020-07-28 17:53:55,271 INFO L280 TraceCheckUtils]: 4: Hoare triple {598#(= (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)) (_ +zero 8 24))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {605#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:55,271 INFO L280 TraceCheckUtils]: 5: Hoare triple {605#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {605#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:55,272 INFO L280 TraceCheckUtils]: 6: Hoare triple {605#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {605#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:55,274 INFO L280 TraceCheckUtils]: 7: Hoare triple {605#(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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~mem2;havoc trunc_float_#t~union3;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {594#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:55,275 INFO L280 TraceCheckUtils]: 8: Hoare triple {594#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} goto; {594#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:55,276 INFO L280 TraceCheckUtils]: 9: Hoare triple {594#(= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x)} trunc_float_#res := trunc_float_~x; {621#(= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|)} is VALID [2020-07-28 17:53:55,276 INFO L280 TraceCheckUtils]: 10: Hoare triple {621#(= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|)} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {625#(= (_ +zero 8 24) ULTIMATE.start_main_~res~0)} is VALID [2020-07-28 17:53:55,277 INFO L280 TraceCheckUtils]: 11: Hoare triple {625#(= (_ +zero 8 24) ULTIMATE.start_main_~res~0)} assume main_#t~short10;__signbit_float_#in~x := main_~res~0;havoc __signbit_float_#res;havoc __signbit_float_#t~mem6, __signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, __signbit_float_~x, __signbit_float_~w~1;__signbit_float_~x := __signbit_float_#in~x;havoc __signbit_float_~w~1; {629#(= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x)} is VALID [2020-07-28 17:53:55,279 INFO L280 TraceCheckUtils]: 12: Hoare triple {629#(= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x)} call __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__signbit_float_~x, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);call __signbit_float_#t~mem6 := read~intINTTYPE4(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);__signbit_float_~w~1 := __signbit_float_#t~mem6;call write~intFLOATTYPE4(__signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);havoc __signbit_float_#t~mem6;havoc __signbit_float_#t~union7;call ULTIMATE.dealloc(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset);havoc __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset; {633#(= (_ +zero 8 24) (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)))} is VALID [2020-07-28 17:53:55,281 INFO L280 TraceCheckUtils]: 13: Hoare triple {633#(= (_ +zero 8 24) (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)))} goto; {633#(= (_ +zero 8 24) (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)))} is VALID [2020-07-28 17:53:55,282 INFO L280 TraceCheckUtils]: 14: Hoare triple {633#(= (_ +zero 8 24) (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)))} __signbit_float_#res := (if 0bv32 != ~bvand32(2147483648bv32, __signbit_float_~w~1) then 1bv32 else 0bv32); {640#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} is VALID [2020-07-28 17:53:55,283 INFO L280 TraceCheckUtils]: 15: Hoare triple {640#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} main_#t~ret9 := __signbit_float_#res;main_#t~short10 := 0bv32 == main_#t~ret9; {644#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:55,283 INFO L280 TraceCheckUtils]: 16: Hoare triple {644#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {587#false} is VALID [2020-07-28 17:53:55,283 INFO L280 TraceCheckUtils]: 17: Hoare triple {587#false} assume !false; {587#false} is VALID [2020-07-28 17:53:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:55,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:55,842 INFO L280 TraceCheckUtils]: 17: Hoare triple {587#false} assume !false; {587#false} is VALID [2020-07-28 17:53:55,843 INFO L280 TraceCheckUtils]: 16: Hoare triple {644#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~short10;havoc main_#t~ret9; {587#false} is VALID [2020-07-28 17:53:55,844 INFO L280 TraceCheckUtils]: 15: Hoare triple {640#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} main_#t~ret9 := __signbit_float_#res;main_#t~short10 := 0bv32 == main_#t~ret9; {644#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:55,845 INFO L280 TraceCheckUtils]: 14: Hoare triple {660#(= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32))} __signbit_float_#res := (if 0bv32 != ~bvand32(2147483648bv32, __signbit_float_~w~1) then 1bv32 else 0bv32); {640#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} is VALID [2020-07-28 17:53:55,845 INFO L280 TraceCheckUtils]: 13: Hoare triple {660#(= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32))} goto; {660#(= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32))} is VALID [2020-07-28 17:53:55,849 INFO L280 TraceCheckUtils]: 12: Hoare triple {667#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start___signbit_float_~x)) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} call __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__signbit_float_~x, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);call __signbit_float_#t~mem6 := read~intINTTYPE4(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);__signbit_float_~w~1 := __signbit_float_#t~mem6;call write~intFLOATTYPE4(__signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);havoc __signbit_float_#t~mem6;havoc __signbit_float_#t~union7;call ULTIMATE.dealloc(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset);havoc __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset; {660#(= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32))} is VALID [2020-07-28 17:53:55,851 INFO L280 TraceCheckUtils]: 11: Hoare triple {671#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= ULTIMATE.start_main_~res~0 (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} assume main_#t~short10;__signbit_float_#in~x := main_~res~0;havoc __signbit_float_#res;havoc __signbit_float_#t~mem6, __signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, __signbit_float_~x, __signbit_float_~w~1;__signbit_float_~x := __signbit_float_#in~x;havoc __signbit_float_~w~1; {667#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start___signbit_float_~x)) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} is VALID [2020-07-28 17:53:55,853 INFO L280 TraceCheckUtils]: 10: Hoare triple {675#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) |ULTIMATE.start_trunc_float_#res|)) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {671#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= ULTIMATE.start_main_~res~0 (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} is VALID [2020-07-28 17:53:55,854 INFO L280 TraceCheckUtils]: 9: Hoare triple {679#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} trunc_float_#res := trunc_float_~x; {675#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) |ULTIMATE.start_trunc_float_#res|)) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} is VALID [2020-07-28 17:53:55,855 INFO L280 TraceCheckUtils]: 8: Hoare triple {679#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} goto; {679#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} is VALID [2020-07-28 17:53:55,857 INFO L280 TraceCheckUtils]: 7: Hoare triple {686#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~mem2;havoc trunc_float_#t~union3;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {679#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} is VALID [2020-07-28 17:53:55,858 INFO L280 TraceCheckUtils]: 6: Hoare triple {686#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {686#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} is VALID [2020-07-28 17:53:55,858 INFO L280 TraceCheckUtils]: 5: Hoare triple {686#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {686#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} is VALID [2020-07-28 17:53:55,860 INFO L280 TraceCheckUtils]: 4: Hoare triple {696#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {686#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)))) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))))} is VALID [2020-07-28 17:53:55,861 INFO L280 TraceCheckUtils]: 3: Hoare triple {696#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} goto; {696#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} is VALID [2020-07-28 17:53:55,864 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {696#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} is VALID [2020-07-28 17:53:55,866 INFO L280 TraceCheckUtils]: 1: Hoare triple {586#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {679#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} is VALID [2020-07-28 17:53:55,867 INFO L280 TraceCheckUtils]: 0: Hoare triple {586#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {586#true} is VALID [2020-07-28 17:53:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:55,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725116881] [2020-07-28 17:53:55,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:55,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2020-07-28 17:53:55,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438466903] [2020-07-28 17:53:55,872 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2020-07-28 17:53:55,872 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:55,873 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states. [2020-07-28 17:53:55,963 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:55,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-28 17:53:55,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:55,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-28 17:53:55,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-07-28 17:53:55,965 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 18 states. [2020-07-28 17:53:56,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:56,913 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-07-28 17:53:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-28 17:53:56,914 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2020-07-28 17:53:56,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:56,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 17:53:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2020-07-28 17:53:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 17:53:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2020-07-28 17:53:56,917 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 18 transitions. [2020-07-28 17:53:56,977 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:56,978 INFO L225 Difference]: With dead ends: 19 [2020-07-28 17:53:56,978 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:53:56,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-07-28 17:53:56,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:53:56,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:53:56,980 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:56,980 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:56,980 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:56,980 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:56,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:56,981 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:56,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:56,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:56,981 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:56,981 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:56,981 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:56,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:56,982 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:56,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:56,982 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:56,982 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:56,982 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:56,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:53:56,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:53:56,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-28 17:53:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:56,983 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:53:56,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-28 17:53:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:56,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:57,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-07-28 17:53:57,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:53:57,405 INFO L264 CegarLoopResult]: At program point L52(lines 43 53) the Hoare annotation is: (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)) (_ +zero 8 24)) (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)) (_ +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))) (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short10| (= (_ +zero 8 24) (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))) (= (_ +zero 8 24) ULTIMATE.start_trunc_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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))) [2020-07-28 17:53:57,405 INFO L264 CegarLoopResult]: At program point L40(lines 12 41) the Hoare annotation is: (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)) (_ +zero 8 24)) (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)) (_ +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))) (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_trunc_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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))) [2020-07-28 17:53:57,405 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:53:57,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:53:57,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:53:57,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2020-07-28 17:53:57,406 INFO L268 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-07-28 17:53:57,406 INFO L264 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (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)) (_ +zero 8 24)) (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)) (_ +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))) (= (_ +zero 8 24) ULTIMATE.start_trunc_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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))) [2020-07-28 17:53:57,406 INFO L268 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-07-28 17:53:57,406 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-07-28 17:53:57,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:53:57,407 INFO L268 CegarLoopResult]: For program point L66-2(lines 66 69) no Hoare annotation was computed. [2020-07-28 17:53:57,407 INFO L268 CegarLoopResult]: For program point L21(lines 21 39) no Hoare annotation was computed. [2020-07-28 17:53:57,407 INFO L268 CegarLoopResult]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2020-07-28 17:53:57,407 INFO L268 CegarLoopResult]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:57,407 INFO L264 CegarLoopResult]: At program point L46-2(lines 46 50) the Hoare annotation is: (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)) (_ +zero 8 24)) (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)) (_ +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))) (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short10| (= (_ +zero 8 24) ULTIMATE.start_trunc_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)) (_ +zero 8 24)) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))) [2020-07-28 17:53:57,407 INFO L268 CegarLoopResult]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:57,407 INFO L271 CegarLoopResult]: At program point L71(lines 55 72) the Hoare annotation is: true [2020-07-28 17:53:57,407 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-28 17:53:57,408 INFO L268 CegarLoopResult]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2020-07-28 17:53:57,408 INFO L264 CegarLoopResult]: At program point L30-2(lines 30 34) the Hoare annotation is: false [2020-07-28 17:53:57,408 INFO L268 CegarLoopResult]: For program point L22(lines 22 35) no Hoare annotation was computed. [2020-07-28 17:53:57,408 INFO L268 CegarLoopResult]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2020-07-28 17:53:57,408 INFO L264 CegarLoopResult]: At program point L14-2(lines 14 18) the Hoare annotation is: (= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x) [2020-07-28 17:53:57,408 INFO L268 CegarLoopResult]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 17:53:57,412 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 17:53:57,413 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:53:57,413 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:53:57,413 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:57,413 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:57,413 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:57,413 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-28 17:53:57,413 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:57,414 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:53:57,415 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:57,416 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:57,416 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:57,416 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:53:57,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,442 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,442 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,442 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:57 BoogieIcfgContainer [2020-07-28 17:53:57,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:57,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:57,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:57,450 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:57,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:51" (3/4) ... [2020-07-28 17:53:57,455 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:53:57,467 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-07-28 17:53:57,467 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-07-28 17:53:57,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:53:57,494 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) [2020-07-28 17:53:57,494 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~Pluszero~LONGDOUBLE() == \result) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) [2020-07-28 17:53:57,495 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) [2020-07-28 17:53:57,495 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) [2020-07-28 17:53:57,523 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:53:57,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:57,526 INFO L168 Benchmark]: Toolchain (without parser) took 7197.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 961.6 MB in the beginning and 1.0 GB in the end (delta: -47.4 MB). Peak memory consumption was 123.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:57,526 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:57,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -119.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:57,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:57,529 INFO L168 Benchmark]: Boogie Preprocessor took 73.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:57,529 INFO L168 Benchmark]: RCFGBuilder took 594.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:57,530 INFO L168 Benchmark]: TraceAbstraction took 5956.48 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.7 MB). Peak memory consumption was 106.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:57,531 INFO L168 Benchmark]: Witness Printer took 72.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:57,540 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 398.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -119.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 594.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5956.48 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.7 MB). Peak memory consumption was 106.6 MB. Max. memory is 11.5 GB. * Witness Printer took 72.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[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: 67]: 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: 24]: Loop Invariant [2020-07-28 17:53:57,559 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,559 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,561 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,561 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,561 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,566 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]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2020-07-28 17:53:57,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,577 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]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant [2020-07-28 17:53:57,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,583 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]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~Pluszero~LONGDOUBLE() == \result) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) - InvariantResult [Line: 43]: Loop Invariant [2020-07-28 17:53:57,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,588 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,588 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,588 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,589 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,589 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,589 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,589 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:57,591 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]) == ~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]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~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]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 181 SDslu, 98 SDs, 0 SdLazy, 92 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 64 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 236 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 19 QuantifiedInterpolants, 8738 SizeOfPredicates, 29 NumberOfNonLiveVariables, 146 ConjunctsInSsa, 40 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...