./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cbb939d5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072c.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16ce03a3dd69e51494a274d069b94d6f99b72863 ........................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072c.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16ce03a3dd69e51494a274d069b94d6f99b72863 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-cbb939d [2020-11-23 16:43:13,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:43:13,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:43:13,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:43:13,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:43:13,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:43:13,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:43:13,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:43:13,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:43:13,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:43:13,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:43:13,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:43:13,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:43:13,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:43:13,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:43:13,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:43:13,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:43:13,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:43:13,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:43:13,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:43:13,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:43:13,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:43:13,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:43:13,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:43:13,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:43:13,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:43:13,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:43:13,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:43:13,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:43:13,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:43:13,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:43:13,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:43:13,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:43:13,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:43:13,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:43:13,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:43:13,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:43:13,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:43:13,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:43:13,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:43:13,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:43:13,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-23 16:43:13,572 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:43:13,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:43:13,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:43:13,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:43:13,575 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:43:13,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:43:13,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:43:13,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-23 16:43:13,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:43:13,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:43:13,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:43:13,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:43:13,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:43:13,577 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:43:13,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:43:13,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:43:13,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:43:13,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:43:13,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:43:13,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:43:13,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:43:13,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:43:13,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:43:13,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:43:13,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:43:13,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-23 16:43:13,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-23 16:43:13,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:43:13,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:43:13,580 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ce03a3dd69e51494a274d069b94d6f99b72863 [2020-11-23 16:43:14,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:43:14,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:43:14,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:43:14,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:43:14,094 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:43:14,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072c.c [2020-11-23 16:43:14,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d536ec26/bdb13b7a73fc45f18bfff0ea0afddbbc/FLAG0603bd32b [2020-11-23 16:43:14,881 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:43:14,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1072c.c [2020-11-23 16:43:14,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d536ec26/bdb13b7a73fc45f18bfff0ea0afddbbc/FLAG0603bd32b [2020-11-23 16:43:15,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d536ec26/bdb13b7a73fc45f18bfff0ea0afddbbc [2020-11-23 16:43:15,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:43:15,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:43:15,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:15,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:43:15,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:43:15,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc21cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15, skipping insertion in model container [2020-11-23 16:43:15,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:43:15,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:43:15,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:15,485 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:43:15,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:15,534 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:43:15,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15 WrapperNode [2020-11-23 16:43:15,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:15,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:15,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:43:15,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:43:15,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:15,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:43:15,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:43:15,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:43:15,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... [2020-11-23 16:43:15,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:43:15,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:43:15,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:43:15,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:43:15,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:43:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-23 16:43:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:43:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-23 16:43:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-23 16:43:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-23 16:43:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:43:15,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:43:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-23 16:43:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:43:16,305 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:43:16,306 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-23 16:43:16,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:16 BoogieIcfgContainer [2020-11-23 16:43:16,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:43:16,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:43:16,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:43:16,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:43:16,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:43:15" (1/3) ... [2020-11-23 16:43:16,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f60a87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:16, skipping insertion in model container [2020-11-23 16:43:16,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:15" (2/3) ... [2020-11-23 16:43:16,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f60a87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:16, skipping insertion in model container [2020-11-23 16:43:16,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:16" (3/3) ... [2020-11-23 16:43:16,325 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2020-11-23 16:43:16,346 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:43:16,351 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:43:16,364 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:43:16,416 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:43:16,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:43:16,417 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:43:16,417 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:43:16,417 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:43:16,417 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:43:16,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:43:16,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:43:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-23 16:43:16,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-23 16:43:16,442 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:16,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:16,444 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:16,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:16,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-11-23 16:43:16,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:43:16,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507090815] [2020-11-23 16:43:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:43:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:16,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507090815] [2020-11-23 16:43:16,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:16,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-23 16:43:16,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069759891] [2020-11-23 16:43:16,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:43:16,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-23 16:43:16,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:43:16,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:43:16,644 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-23 16:43:16,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:16,665 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-11-23 16:43:16,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:43:16,667 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-23 16:43:16,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:16,677 INFO L225 Difference]: With dead ends: 49 [2020-11-23 16:43:16,678 INFO L226 Difference]: Without dead ends: 22 [2020-11-23 16:43:16,681 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 [2020-11-23 16:43:16,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-23 16:43:16,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-23 16:43:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-23 16:43:16,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-11-23 16:43:16,724 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-11-23 16:43:16,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:16,725 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-11-23 16:43:16,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:43:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-11-23 16:43:16,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-23 16:43:16,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:16,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:16,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-23 16:43:16,727 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:16,728 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-11-23 16:43:16,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:43:16,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405091896] [2020-11-23 16:43:16,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:43:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:43:16,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:43:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:43:16,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:43:16,904 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-23 16:43:16,905 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:43:16,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-23 16:43:16,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:43:16 BoogieIcfgContainer [2020-11-23 16:43:16,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:43:16,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:43:16,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:43:16,942 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:43:16,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:16" (3/4) ... [2020-11-23 16:43:16,947 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-23 16:43:16,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:43:16,950 INFO L168 Benchmark]: Toolchain (without parser) took 1709.57 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 34.3 MB in the beginning and 35.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:16,951 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 39.8 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:16,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.33 ms. Allocated memory is still 50.3 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 95.4 kB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:16,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.00 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 32.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:16,955 INFO L168 Benchmark]: Boogie Preprocessor took 34.60 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 30.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:16,956 INFO L168 Benchmark]: RCFGBuilder took 691.23 ms. Allocated memory is still 50.3 MB. Free memory was 30.5 MB in the beginning and 24.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:16,957 INFO L168 Benchmark]: TraceAbstraction took 627.50 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.8 MB in the beginning and 36.1 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:16,958 INFO L168 Benchmark]: Witness Printer took 6.24 ms. Allocated memory is still 60.8 MB. Free memory was 36.1 MB in the beginning and 35.7 MB in the end (delta: 335.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:16,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 39.8 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.33 ms. Allocated memory is still 50.3 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 95.4 kB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.00 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 32.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.60 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 30.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 691.23 ms. Allocated memory is still 50.3 MB. Free memory was 30.5 MB in the beginning and 24.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 627.50 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.8 MB in the beginning and 36.1 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.24 ms. Allocated memory is still 60.8 MB. Free memory was 36.1 MB in the beginning and 35.7 MB in the end (delta: 335.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of bitwiseAnd at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 40. Possible FailurePath: [L64] float x = 0.0f; [L15] __int32_t signbit, w, exponent_less_127; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L23] COND FALSE !(exponent_less_127 < 23) [L39] COND TRUE exponent_less_127 == 255 [L40] return x + x; [L65] float res = trunc_float(x); [L68] EXPR res == 0.0f && __signbit_float(res) == 0 [L68] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L4] __assert_fail("0", "float_req_bl_1072c.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-cbb939d [2020-11-23 16:43:19,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:43:19,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:43:19,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:43:19,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:43:19,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:43:19,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:43:19,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:43:19,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:43:19,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:43:19,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:43:19,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:43:19,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:43:19,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:43:19,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:43:19,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:43:19,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:43:19,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:43:19,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:43:19,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:43:19,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:43:19,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:43:19,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:43:19,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:43:19,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:43:19,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:43:19,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:43:19,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:43:19,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:43:19,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:43:19,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:43:19,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:43:19,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:43:19,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:43:19,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:43:19,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:43:19,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:43:19,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:43:19,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:43:19,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:43:19,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:43:19,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-23 16:43:19,731 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:43:19,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:43:19,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:43:19,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:43:19,734 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:43:19,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:43:19,734 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:43:19,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:43:19,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:43:19,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:43:19,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:43:19,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:43:19,736 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-23 16:43:19,736 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-23 16:43:19,737 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:43:19,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:43:19,737 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:43:19,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:43:19,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:43:19,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:43:19,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:43:19,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:43:19,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:43:19,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:43:19,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:43:19,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:43:19,740 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-23 16:43:19,740 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-23 16:43:19,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:43:19,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:43:19,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-23 16:43:19,741 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ce03a3dd69e51494a274d069b94d6f99b72863 [2020-11-23 16:43:20,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:43:20,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:43:20,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:43:20,190 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:43:20,190 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:43:20,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072c.c [2020-11-23 16:43:20,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54fbc3ee/2874799a16944a9faa84329b55933b63/FLAG1fb257454 [2020-11-23 16:43:20,846 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:43:20,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1072c.c [2020-11-23 16:43:20,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54fbc3ee/2874799a16944a9faa84329b55933b63/FLAG1fb257454 [2020-11-23 16:43:21,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54fbc3ee/2874799a16944a9faa84329b55933b63 [2020-11-23 16:43:21,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:43:21,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:43:21,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:21,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:43:21,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:43:21,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8557a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21, skipping insertion in model container [2020-11-23 16:43:21,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:43:21,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:43:21,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:21,550 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:43:21,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:21,637 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:43:21,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21 WrapperNode [2020-11-23 16:43:21,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:21,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:21,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:43:21,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:43:21,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:21,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:43:21,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:43:21,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:43:21,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... [2020-11-23 16:43:21,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:43:21,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:43:21,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:43:21,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:43:21,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:43:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-23 16:43:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:43:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-23 16:43:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-23 16:43:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:43:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:43:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-23 16:43:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-23 16:43:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:43:22,438 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:43:22,439 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-23 16:43:22,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:22 BoogieIcfgContainer [2020-11-23 16:43:22,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:43:22,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:43:22,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:43:22,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:43:22,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:43:21" (1/3) ... [2020-11-23 16:43:22,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6819d692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:22, skipping insertion in model container [2020-11-23 16:43:22,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:21" (2/3) ... [2020-11-23 16:43:22,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6819d692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:22, skipping insertion in model container [2020-11-23 16:43:22,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:22" (3/3) ... [2020-11-23 16:43:22,451 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2020-11-23 16:43:22,468 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:43:22,472 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:43:22,485 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:43:22,514 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:43:22,514 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:43:22,514 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:43:22,515 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:43:22,515 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:43:22,515 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:43:22,515 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:43:22,515 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:43:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-23 16:43:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-23 16:43:22,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:22,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:22,540 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:22,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:22,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-11-23 16:43:22,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:22,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613998783] [2020-11-23 16:43:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-23 16:43:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:22,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-23 16:43:22,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:22,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:22,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613998783] [2020-11-23 16:43:22,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:22,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-23 16:43:22,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796684554] [2020-11-23 16:43:22,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:43:22,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:22,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:43:22,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:43:22,810 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-23 16:43:22,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:22,830 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-11-23 16:43:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:43:22,832 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-23 16:43:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:22,843 INFO L225 Difference]: With dead ends: 49 [2020-11-23 16:43:22,843 INFO L226 Difference]: Without dead ends: 22 [2020-11-23 16:43:22,852 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 [2020-11-23 16:43:22,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-23 16:43:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-23 16:43:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-23 16:43:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-11-23 16:43:22,891 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-11-23 16:43:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:22,891 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-11-23 16:43:22,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:43:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-11-23 16:43:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-23 16:43:22,892 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:22,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:23,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-23 16:43:23,106 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:23,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:23,107 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-11-23 16:43:23,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:23,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486909461] [2020-11-23 16:43:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-23 16:43:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:23,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-23 16:43:23,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:23,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:23,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486909461] [2020-11-23 16:43:23,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:23,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-23 16:43:23,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897007323] [2020-11-23 16:43:23,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-23 16:43:23,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:23,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-23 16:43:23,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-23 16:43:23,495 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2020-11-23 16:43:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:23,698 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-11-23 16:43:23,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-23 16:43:23,703 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-23 16:43:23,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:23,704 INFO L225 Difference]: With dead ends: 32 [2020-11-23 16:43:23,704 INFO L226 Difference]: Without dead ends: 19 [2020-11-23 16:43:23,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-23 16:43:23,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-23 16:43:23,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-23 16:43:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-23 16:43:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-23 16:43:23,715 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2020-11-23 16:43:23,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:23,716 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-23 16:43:23,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-23 16:43:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-23 16:43:23,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-23 16:43:23,717 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:23,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:23,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-23 16:43:23,935 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:23,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:23,937 INFO L82 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2020-11-23 16:43:23,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:23,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523516504] [2020-11-23 16:43:23,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-23 16:43:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:24,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-23 16:43:24,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:24,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:24,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523516504] [2020-11-23 16:43:24,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:24,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 10 [2020-11-23 16:43:24,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123534378] [2020-11-23 16:43:24,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-23 16:43:24,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:24,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-23 16:43:24,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-23 16:43:24,238 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2020-11-23 16:43:24,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:24,426 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-11-23 16:43:24,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-23 16:43:24,427 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-11-23 16:43:24,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:24,428 INFO L225 Difference]: With dead ends: 22 [2020-11-23 16:43:24,428 INFO L226 Difference]: Without dead ends: 19 [2020-11-23 16:43:24,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-11-23 16:43:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-23 16:43:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-23 16:43:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-23 16:43:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-11-23 16:43:24,435 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2020-11-23 16:43:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:24,436 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-11-23 16:43:24,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-23 16:43:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-11-23 16:43:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-23 16:43:24,437 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:24,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:24,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-23 16:43:24,646 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:24,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:24,648 INFO L82 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2020-11-23 16:43:24,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:24,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100295752] [2020-11-23 16:43:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-23 16:43:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:24,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-23 16:43:24,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:24,949 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-23 16:43:25,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:25,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:25,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:25,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100295752] [2020-11-23 16:43:25,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:25,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2020-11-23 16:43:25,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217590701] [2020-11-23 16:43:25,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-23 16:43:25,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:25,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-23 16:43:25,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-11-23 16:43:25,448 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 18 states. [2020-11-23 16:43:25,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:25,861 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-23 16:43:25,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-23 16:43:25,862 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2020-11-23 16:43:25,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:25,862 INFO L225 Difference]: With dead ends: 19 [2020-11-23 16:43:25,862 INFO L226 Difference]: Without dead ends: 0 [2020-11-23 16:43:25,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-11-23 16:43:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-23 16:43:25,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-23 16:43:25,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-23 16:43:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-23 16:43:25,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-23 16:43:25,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:25,864 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-23 16:43:25,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-23 16:43:25,865 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-23 16:43:25,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-23 16:43:26,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-23 16:43:26,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-23 16:43:26,303 INFO L262 CegarLoopResult]: For program point L23(lines 23 41) no Hoare annotation was computed. [2020-11-23 16:43:26,303 INFO L262 CegarLoopResult]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2020-11-23 16:43:26,303 INFO L262 CegarLoopResult]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2020-11-23 16:43:26,304 INFO L258 CegarLoopResult]: At program point L48-2(lines 48 52) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)))) [2020-11-23 16:43:26,304 INFO L262 CegarLoopResult]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2020-11-23 16:43:26,304 INFO L265 CegarLoopResult]: At program point L73(lines 57 74) the Hoare annotation is: true [2020-11-23 16:43:26,304 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-23 16:43:26,304 INFO L262 CegarLoopResult]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2020-11-23 16:43:26,304 INFO L258 CegarLoopResult]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2020-11-23 16:43:26,305 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-23 16:43:26,305 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-23 16:43:26,305 INFO L262 CegarLoopResult]: For program point L24(lines 24 37) no Hoare annotation was computed. [2020-11-23 16:43:26,305 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-23 16:43:26,305 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-11-23 16:43:26,305 INFO L258 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x) [2020-11-23 16:43:26,305 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2020-11-23 16:43:26,306 INFO L262 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-23 16:43:26,306 INFO L262 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-23 16:43:26,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-23 16:43:26,306 INFO L258 CegarLoopResult]: At program point L54(lines 45 55) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)))) [2020-11-23 16:43:26,306 INFO L258 CegarLoopResult]: At program point L42(lines 14 43) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res|) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)))) [2020-11-23 16:43:26,307 INFO L262 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-23 16:43:26,307 INFO L258 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: (and (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0))))) (= (_ +zero 8 24) ULTIMATE.start_trunc_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)))) [2020-11-23 16:43:26,307 INFO L262 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-23 16:43:26,307 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-23 16:43:26,307 INFO L262 CegarLoopResult]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2020-11-23 16:43:26,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,343 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,343 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,343 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,343 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,343 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:43:26 BoogieIcfgContainer [2020-11-23 16:43:26,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:43:26,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:43:26,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:43:26,347 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:43:26,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:22" (3/4) ... [2020-11-23 16:43:26,353 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-23 16:43:26,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-23 16:43:26,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-23 16:43:26,370 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-23 16:43:26,370 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-23 16:43:26,398 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0])) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) [2020-11-23 16:43:26,398 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) [2020-11-23 16:43:26,399 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) [2020-11-23 16:43:26,399 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) [2020-11-23 16:43:26,423 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-23 16:43:26,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:43:26,426 INFO L168 Benchmark]: Toolchain (without parser) took 5180.49 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 22.8 MB in the beginning and 31.0 MB in the end (delta: -8.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:26,427 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:26,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.42 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 20.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:26,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.18 ms. Allocated memory is still 46.1 MB. Free memory was 20.8 MB in the beginning and 19.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:26,429 INFO L168 Benchmark]: Boogie Preprocessor took 58.72 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 39.6 MB in the end (delta: -20.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:26,429 INFO L168 Benchmark]: RCFGBuilder took 691.54 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 35.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:26,430 INFO L168 Benchmark]: TraceAbstraction took 3903.53 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 34.3 MB in the end (delta: 708.4 kB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:26,431 INFO L168 Benchmark]: Witness Printer took 76.44 ms. Allocated memory is still 69.2 MB. Free memory was 34.3 MB in the beginning and 31.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:26,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.42 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 20.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.18 ms. Allocated memory is still 46.1 MB. Free memory was 20.8 MB in the beginning and 19.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.72 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 39.6 MB in the end (delta: -20.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 691.54 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 35.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3903.53 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 34.3 MB in the end (delta: 708.4 kB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. * Witness Printer took 76.44 ms. Allocated memory is still 69.2 MB. Free memory was 34.3 MB in the beginning and 31.0 MB in the end (delta: 3.2 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_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2020-11-23 16:43:26,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) - InvariantResult [Line: 45]: Loop Invariant [2020-11-23 16:43:26,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,453 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,453 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,454 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,455 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) - InvariantResult [Line: 26]: Loop Invariant [2020-11-23 16:43:26,455 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0])) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 48]: Loop Invariant [2020-11-23 16:43:26,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,461 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,461 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-11-23 16:43:26,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]))) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 187 SDslu, 79 SDs, 0 SdLazy, 83 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 64 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 236 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 19 QuantifiedInterpolants, 8738 SizeOfPredicates, 29 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...