./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cff56ef2177d4a827b720aa6155a34e4f93cd99b ........................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cff56ef2177d4a827b720aa6155a34e4f93cd99b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:08:41,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:08:41,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:08:41,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:08:41,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:08:41,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:08:41,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:08:41,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:08:41,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:08:41,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:08:41,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:08:41,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:08:41,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:08:41,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:08:41,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:08:41,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:08:41,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:08:41,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:08:41,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:08:41,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:08:41,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:08:41,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:08:41,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:08:41,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:08:41,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:08:41,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:08:41,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:08:41,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:08:41,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:08:41,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:08:41,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:08:41,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:08:41,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:08:41,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:08:41,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:08:41,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:08:41,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:08:41,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:08:41,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:08:41,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:08:41,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:08:41,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 15:08:41,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:08:41,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:08:41,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:08:41,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:08:41,757 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:08:41,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:08:41,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:08:41,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:08:41,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:08:41,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:08:41,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:08:41,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:08:41,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:08:41,759 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:08:41,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:08:41,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:08:41,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:08:41,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:08:41,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:08:41,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:08:41,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:08:41,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:08:41,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:08:41,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:08:41,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:08:41,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:08:41,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:08:41,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:08:41,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:08:41,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cff56ef2177d4a827b720aa6155a34e4f93cd99b [2020-10-24 15:08:42,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:08:42,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:08:42,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:08:42,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:08:42,225 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:08:42,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 15:08:42,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7a8cdef8/da29f33beddb42648dc71ffa8282b30a/FLAGdb849a9b0 [2020-10-24 15:08:43,088 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:08:43,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 15:08:43,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7a8cdef8/da29f33beddb42648dc71ffa8282b30a/FLAGdb849a9b0 [2020-10-24 15:08:43,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7a8cdef8/da29f33beddb42648dc71ffa8282b30a [2020-10-24 15:08:43,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:08:43,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:08:43,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:43,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:08:43,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:08:43,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c69148e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43, skipping insertion in model container [2020-10-24 15:08:43,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,481 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:08:43,526 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:08:43,704 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:43,714 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:08:43,742 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:43,760 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:08:43,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43 WrapperNode [2020-10-24 15:08:43,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:43,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:08:43,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:08:43,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:08:43,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:08:43,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:08:43,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:08:43,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:08:43,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... [2020-10-24 15:08:43,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:08:43,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:08:43,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:08:43,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:08:43,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:08:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:08:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:08:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:08:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:08:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:08:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:08:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:08:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:08:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:08:44,594 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:08:44,595 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 15:08:44,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:44 BoogieIcfgContainer [2020-10-24 15:08:44,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:08:44,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:08:44,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:08:44,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:08:44,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:08:43" (1/3) ... [2020-10-24 15:08:44,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16410e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:08:44, skipping insertion in model container [2020-10-24 15:08:44,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:43" (2/3) ... [2020-10-24 15:08:44,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16410e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:08:44, skipping insertion in model container [2020-10-24 15:08:44,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:44" (3/3) ... [2020-10-24 15:08:44,609 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-10-24 15:08:44,623 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:08:44,630 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:08:44,650 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:08:44,697 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:08:44,698 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:08:44,698 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:08:44,698 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:08:44,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:08:44,699 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:08:44,699 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:08:44,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:08:44,718 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-24 15:08:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 15:08:44,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:44,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:44,729 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:44,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:44,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-10-24 15:08:44,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:08:44,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212923061] [2020-10-24 15:08:44,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:08:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:08:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:44,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212923061] [2020-10-24 15:08:44,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:08:44,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:08:44,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608094957] [2020-10-24 15:08:44,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:08:44,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:08:44,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:08:44,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:08:44,944 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-24 15:08:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:08:44,963 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-24 15:08:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:08:44,965 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 15:08:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:08:44,976 INFO L225 Difference]: With dead ends: 49 [2020-10-24 15:08:44,976 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 15:08:44,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:08:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 15:08:45,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 15:08:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 15:08:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-10-24 15:08:45,017 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-10-24 15:08:45,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:08:45,018 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-10-24 15:08:45,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:08:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-10-24 15:08:45,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:08:45,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:45,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:45,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:08:45,020 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:45,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:45,021 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-10-24 15:08:45,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:08:45,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299561115] [2020-10-24 15:08:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:08:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:08:45,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:08:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:08:45,118 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:08:45,147 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:08:45,148 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:08:45,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:08:45,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:08:45 BoogieIcfgContainer [2020-10-24 15:08:45,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:08:45,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:08:45,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:08:45,182 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:08:45,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:44" (3/4) ... [2020-10-24 15:08:45,186 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:08:45,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:08:45,189 INFO L168 Benchmark]: Toolchain (without parser) took 1765.41 ms. Allocated memory was 37.7 MB in the beginning and 48.2 MB in the end (delta: 10.5 MB). Free memory was 15.0 MB in the beginning and 28.6 MB in the end (delta: -13.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:45,190 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 37.7 MB. Free memory was 22.6 MB in the beginning and 22.6 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:45,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.39 ms. Allocated memory is still 37.7 MB. Free memory was 14.3 MB in the beginning and 13.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:45,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.00 ms. Allocated memory was 37.7 MB in the beginning and 48.2 MB in the end (delta: 10.5 MB). Free memory was 13.2 MB in the beginning and 31.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:45,193 INFO L168 Benchmark]: Boogie Preprocessor took 34.43 ms. Allocated memory is still 48.2 MB. Free memory was 31.9 MB in the beginning and 30.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:45,194 INFO L168 Benchmark]: RCFGBuilder took 749.23 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 25.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:45,195 INFO L168 Benchmark]: TraceAbstraction took 579.59 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 28.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:45,196 INFO L168 Benchmark]: Witness Printer took 5.45 ms. Allocated memory is still 48.2 MB. Free memory was 28.8 MB in the beginning and 28.6 MB in the end (delta: 227.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:45,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 37.7 MB. Free memory was 22.6 MB in the beginning and 22.6 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.39 ms. Allocated memory is still 37.7 MB. Free memory was 14.3 MB in the beginning and 13.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.00 ms. Allocated memory was 37.7 MB in the beginning and 48.2 MB in the end (delta: 10.5 MB). Free memory was 13.2 MB in the beginning and 31.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.43 ms. Allocated memory is still 48.2 MB. Free memory was 31.9 MB in the beginning and 30.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 749.23 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 25.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 579.59 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 28.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.45 ms. Allocated memory is still 48.2 MB. Free memory was 28.8 MB in the beginning and 28.6 MB in the end (delta: 227.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 45, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 81. Possible FailurePath: [L77] float x = 0.0f; [L15] __uint32_t w; [L17] int exponent_less_127; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; [L78] float res = round_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1032a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:08:47,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:08:47,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:08:47,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:08:47,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:08:47,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:08:47,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:08:47,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:08:47,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:08:47,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:08:47,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:08:47,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:08:47,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:08:47,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:08:47,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:08:47,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:08:47,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:08:47,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:08:47,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:08:47,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:08:48,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:08:48,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:08:48,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:08:48,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:08:48,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:08:48,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:08:48,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:08:48,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:08:48,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:08:48,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:08:48,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:08:48,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:08:48,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:08:48,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:08:48,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:08:48,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:08:48,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:08:48,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:08:48,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:08:48,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:08:48,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:08:48,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 15:08:48,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:08:48,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:08:48,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:08:48,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:08:48,095 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:08:48,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:08:48,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:08:48,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:08:48,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:08:48,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:08:48,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:08:48,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:08:48,096 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:08:48,097 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:08:48,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:08:48,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:08:48,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:08:48,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:08:48,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:08:48,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:08:48,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:08:48,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:08:48,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:08:48,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:08:48,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:08:48,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:08:48,099 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:08:48,100 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:08:48,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:08:48,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:08:48,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:08:48,100 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cff56ef2177d4a827b720aa6155a34e4f93cd99b [2020-10-24 15:08:48,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:08:48,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:08:48,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:08:48,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:08:48,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:08:48,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 15:08:48,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c6a6201/b8c0ef93e9bb492cb276125f7c678a77/FLAGa56905218 [2020-10-24 15:08:49,402 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:08:49,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 15:08:49,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c6a6201/b8c0ef93e9bb492cb276125f7c678a77/FLAGa56905218 [2020-10-24 15:08:49,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c6a6201/b8c0ef93e9bb492cb276125f7c678a77 [2020-10-24 15:08:49,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:08:49,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:08:49,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:49,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:08:49,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:08:49,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:49" (1/1) ... [2020-10-24 15:08:49,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6b4da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:49, skipping insertion in model container [2020-10-24 15:08:49,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:08:49" (1/1) ... [2020-10-24 15:08:49,800 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:08:49,839 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:08:50,036 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:50,059 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:08:50,132 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:08:50,175 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:08:50,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50 WrapperNode [2020-10-24 15:08:50,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:08:50,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:08:50,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:08:50,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:08:50,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:08:50,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:08:50,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:08:50,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:08:50,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... [2020-10-24 15:08:50,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:08:50,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:08:50,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:08:50,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:08:50,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:08:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 15:08:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:08:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 15:08:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 15:08:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:08:50,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:08:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 15:08:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 15:08:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 15:08:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:08:50,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:08:50,821 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 15:08:50,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:50 BoogieIcfgContainer [2020-10-24 15:08:50,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:08:50,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:08:50,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:08:50,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:08:50,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:08:49" (1/3) ... [2020-10-24 15:08:50,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b67e364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:08:50, skipping insertion in model container [2020-10-24 15:08:50,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:08:50" (2/3) ... [2020-10-24 15:08:50,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b67e364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:08:50, skipping insertion in model container [2020-10-24 15:08:50,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:50" (3/3) ... [2020-10-24 15:08:50,833 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-10-24 15:08:50,846 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:08:50,851 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:08:50,866 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:08:50,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:08:50,896 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:08:50,897 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:08:50,897 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:08:50,897 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:08:50,897 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:08:50,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:08:50,898 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:08:50,918 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-24 15:08:50,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 15:08:50,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:50,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:50,927 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:50,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:50,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-10-24 15:08:50,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:08:50,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458771614] [2020-10-24 15:08:50,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 15:08:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:08:51,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 15:08:51,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:08:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:51,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:08:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:51,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458771614] [2020-10-24 15:08:51,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:08:51,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 15:08:51,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899782302] [2020-10-24 15:08:51,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:08:51,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:08:51,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:08:51,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:08:51,301 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-24 15:08:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:08:51,323 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-24 15:08:51,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:08:51,325 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 15:08:51,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:08:51,336 INFO L225 Difference]: With dead ends: 49 [2020-10-24 15:08:51,336 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 15:08:51,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:08:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 15:08:51,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 15:08:51,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 15:08:51,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-10-24 15:08:51,375 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-10-24 15:08:51,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:08:51,375 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-10-24 15:08:51,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:08:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-10-24 15:08:51,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:08:51,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:51,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:51,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 15:08:51,594 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:51,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:51,596 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-10-24 15:08:51,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:08:51,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581465270] [2020-10-24 15:08:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 15:08:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:08:51,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 15:08:51,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:08:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:51,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:08:51,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:51,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581465270] [2020-10-24 15:08:51,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:08:51,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 15:08:51,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196027299] [2020-10-24 15:08:51,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 15:08:51,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:08:51,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 15:08:51,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 15:08:51,905 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2020-10-24 15:08:52,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:08:52,024 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-10-24 15:08:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 15:08:52,025 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-24 15:08:52,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:08:52,026 INFO L225 Difference]: With dead ends: 34 [2020-10-24 15:08:52,026 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 15:08:52,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 15:08:52,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 15:08:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 15:08:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 15:08:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-24 15:08:52,034 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-10-24 15:08:52,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:08:52,035 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-24 15:08:52,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 15:08:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-24 15:08:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 15:08:52,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:52,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:52,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 15:08:52,258 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:52,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:52,263 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2020-10-24 15:08:52,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:08:52,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157792519] [2020-10-24 15:08:52,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 15:08:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:08:52,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 15:08:52,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:08:52,416 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 15:08:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:52,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:08:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:52,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157792519] [2020-10-24 15:08:52,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:08:52,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-24 15:08:52,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144837817] [2020-10-24 15:08:52,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 15:08:52,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:08:52,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 15:08:52,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-24 15:08:52,558 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-10-24 15:08:52,988 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2020-10-24 15:08:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:08:53,039 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-10-24 15:08:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 15:08:53,040 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-24 15:08:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:08:53,041 INFO L225 Difference]: With dead ends: 23 [2020-10-24 15:08:53,041 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 15:08:53,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-24 15:08:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 15:08:53,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 15:08:53,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 15:08:53,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-10-24 15:08:53,049 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2020-10-24 15:08:53,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:08:53,050 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-10-24 15:08:53,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 15:08:53,050 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-10-24 15:08:53,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 15:08:53,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:08:53,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:08:53,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 15:08:53,252 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:08:53,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:08:53,253 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2020-10-24 15:08:53,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:08:53,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542985480] [2020-10-24 15:08:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 15:08:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:08:53,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-24 15:08:53,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:08:53,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 15:08:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:53,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:08:53,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:08:53,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542985480] [2020-10-24 15:08:53,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:08:53,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-10-24 15:08:53,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339340697] [2020-10-24 15:08:53,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-24 15:08:53,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:08:53,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-24 15:08:53,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-10-24 15:08:53,650 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 16 states. [2020-10-24 15:08:53,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:08:53,921 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-10-24 15:08:53,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 15:08:53,922 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-10-24 15:08:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:08:53,923 INFO L225 Difference]: With dead ends: 20 [2020-10-24 15:08:53,923 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 15:08:53,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-10-24 15:08:53,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 15:08:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 15:08:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 15:08:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 15:08:53,925 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-24 15:08:53,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:08:53,925 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 15:08:53,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-24 15:08:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 15:08:53,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 15:08:54,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 15:08:54,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 15:08:54,326 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-24 15:08:54,524 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-10-24 15:08:54,529 INFO L274 CegarLoopResult]: For program point L27(lines 27 48) no Hoare annotation was computed. [2020-10-24 15:08:54,529 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2020-10-24 15:08:54,530 INFO L270 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short18| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~x) ((_ extract 30 23) ULTIMATE.start___signbit_float_~x) ((_ extract 22 0) ULTIMATE.start___signbit_float_~x))) (= (_ +zero 8 24) (fp ((_ extract 31 31) |ULTIMATE.start_round_float_#res|) ((_ extract 30 23) |ULTIMATE.start_round_float_#res|) ((_ extract 22 0) |ULTIMATE.start_round_float_#res|))) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_round_float_~x) ((_ extract 30 23) ULTIMATE.start_round_float_~x) ((_ extract 22 0) ULTIMATE.start_round_float_~x))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_main_~res~0) ((_ extract 30 23) ULTIMATE.start_main_~res~0) ((_ extract 22 0) ULTIMATE.start_main_~res~0)) (_ +zero 8 24))) [2020-10-24 15:08:54,531 INFO L274 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2020-10-24 15:08:54,531 INFO L274 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-10-24 15:08:54,531 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_round_float_~x) ((_ extract 30 23) ULTIMATE.start_round_float_~x) ((_ extract 22 0) ULTIMATE.start_round_float_~x))) [2020-10-24 15:08:54,532 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-24 15:08:54,532 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-10-24 15:08:54,532 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-10-24 15:08:54,532 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 15:08:54,532 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 15:08:54,533 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 15:08:54,533 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 15:08:54,533 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 15:08:54,533 INFO L274 CegarLoopResult]: For program point L28(lines 28 41) no Hoare annotation was computed. [2020-10-24 15:08:54,533 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 15:08:54,534 INFO L277 CegarLoopResult]: At program point L86(lines 69 87) the Hoare annotation is: true [2020-10-24 15:08:54,534 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-10-24 15:08:54,534 INFO L274 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2020-10-24 15:08:54,535 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-10-24 15:08:54,535 INFO L270 CegarLoopResult]: At program point L66(lines 57 67) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short18| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~x) ((_ extract 30 23) ULTIMATE.start___signbit_float_~x) ((_ extract 22 0) ULTIMATE.start___signbit_float_~x))) (= (_ +zero 8 24) (fp ((_ extract 31 31) |ULTIMATE.start_round_float_#res|) ((_ extract 30 23) |ULTIMATE.start_round_float_#res|) ((_ extract 22 0) |ULTIMATE.start_round_float_#res|))) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (_ +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) (fp ((_ extract 31 31) ULTIMATE.start_round_float_~x) ((_ extract 30 23) ULTIMATE.start_round_float_~x) ((_ extract 22 0) ULTIMATE.start_round_float_~x))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (fp ((_ extract 31 31) ULTIMATE.start_main_~res~0) ((_ extract 30 23) ULTIMATE.start_main_~res~0) ((_ extract 22 0) ULTIMATE.start_main_~res~0)) (_ +zero 8 24))) [2020-10-24 15:08:54,535 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 15:08:54,536 INFO L270 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (and (= (_ +zero 8 24) (fp ((_ extract 31 31) |ULTIMATE.start_round_float_#res|) ((_ extract 30 23) |ULTIMATE.start_round_float_#res|) ((_ extract 22 0) |ULTIMATE.start_round_float_#res|))) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_round_float_~x) ((_ extract 30 23) ULTIMATE.start_round_float_~x) ((_ extract 22 0) ULTIMATE.start_round_float_~x))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24))) [2020-10-24 15:08:54,537 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-10-24 15:08:54,537 INFO L274 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2020-10-24 15:08:54,537 INFO L274 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-10-24 15:08:54,550 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,552 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,566 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,566 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,588 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,588 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,588 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,589 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:08:54 BoogieIcfgContainer [2020-10-24 15:08:54,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:08:54,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:08:54,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:08:54,603 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:08:54,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:08:50" (3/4) ... [2020-10-24 15:08:54,607 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 15:08:54,622 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-24 15:08:54,623 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 15:08:54,623 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 15:08:54,623 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 15:08:54,656 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() [2020-10-24 15:08:54,657 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0])) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE() [2020-10-24 15:08:54,658 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0])) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 0bv32) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE() [2020-10-24 15:08:54,685 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 15:08:54,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:08:54,688 INFO L168 Benchmark]: Toolchain (without parser) took 4947.46 ms. Allocated memory was 41.9 MB in the beginning and 62.9 MB in the end (delta: 21.0 MB). Free memory was 19.0 MB in the beginning and 22.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:54,688 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory was 28.0 MB in the beginning and 28.0 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:54,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.52 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.4 MB in the beginning and 34.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:54,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.59 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 32.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:54,690 INFO L168 Benchmark]: Boogie Preprocessor took 42.35 ms. Allocated memory is still 52.4 MB. Free memory was 32.9 MB in the beginning and 31.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:08:54,691 INFO L168 Benchmark]: RCFGBuilder took 544.62 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 25.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:54,692 INFO L168 Benchmark]: TraceAbstraction took 3770.81 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 26.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:54,693 INFO L168 Benchmark]: Witness Printer took 89.12 ms. Allocated memory is still 62.9 MB. Free memory was 26.2 MB in the beginning and 22.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:08:54,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory was 28.0 MB in the beginning and 28.0 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 427.52 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.4 MB in the beginning and 34.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.59 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 32.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.35 ms. Allocated memory is still 52.4 MB. Free memory was 32.9 MB in the beginning and 31.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 544.62 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 25.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3770.81 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 26.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 89.12 ms. Allocated memory is still 62.9 MB. Free memory was 26.2 MB in the beginning and 22.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 60]: Loop Invariant [2020-10-24 15:08:54,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0])) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 14]: Loop Invariant [2020-10-24 15:08:54,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) - InvariantResult [Line: 57]: Loop Invariant [2020-10-24 15:08:54,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 15:08:54,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0])) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0])) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 0bv32) && ~fp~LONGDOUBLE(res[31:31], res[30:23], res[22:0]) == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 159 SDslu, 62 SDs, 0 SdLazy, 88 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 204 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 208 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 11 QuantifiedInterpolants, 7358 SizeOfPredicates, 23 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 29 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...