./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0920a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0920a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68aa61f206da468fa7dcfce700dfa7d384c1ee8e .......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0920a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68aa61f206da468fa7dcfce700dfa7d384c1ee8e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:02:22,384 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:02:22,385 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:02:22,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:02:22,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:02:22,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:02:22,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:02:22,404 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:02:22,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:02:22,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:02:22,408 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:02:22,408 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:02:22,410 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:02:22,411 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:02:22,412 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:02:22,413 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:02:22,415 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:02:22,416 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:02:22,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:02:22,420 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:02:22,422 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:02:22,423 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:02:22,426 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:02:22,427 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:02:22,427 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:02:22,428 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:02:22,430 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:02:22,431 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:02:22,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:02:22,433 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:02:22,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:02:22,434 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:02:22,434 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:02:22,435 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:02:22,436 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:02:22,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:02:22,438 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:02:22,460 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:02:22,460 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:02:22,461 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:02:22,461 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:02:22,462 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:02:22,462 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:02:22,462 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:02:22,462 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:02:22,462 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:02:22,465 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:02:22,465 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:02:22,465 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:02:22,465 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:02:22,465 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:02:22,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:02:22,466 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:02:22,466 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:02:22,466 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:02:22,467 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:02:22,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:02:22,467 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:02:22,467 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:02:22,467 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:02:22,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:02:22,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:02:22,471 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:02:22,471 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:02:22,471 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:02:22,471 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:02:22,472 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:02:22,472 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2018-11-28 18:02:22,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:02:22,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:02:22,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:02:22,555 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:02:22,556 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:02:22,556 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-11-28 18:02:22,618 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f949ab309/0831c398a2be45d094c964820958ae86/FLAG0875f84a7 [2018-11-28 18:02:23,118 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:02:23,119 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-11-28 18:02:23,130 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f949ab309/0831c398a2be45d094c964820958ae86/FLAG0875f84a7 [2018-11-28 18:02:23,603 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f949ab309/0831c398a2be45d094c964820958ae86 [2018-11-28 18:02:23,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:02:23,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:02:23,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:23,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:02:23,616 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:02:23,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:23" (1/1) ... [2018-11-28 18:02:23,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d24169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:23, skipping insertion in model container [2018-11-28 18:02:23,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:23" (1/1) ... [2018-11-28 18:02:23,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:02:23,664 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:02:23,955 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:23,965 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:02:24,047 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:24,083 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:02:24,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24 WrapperNode [2018-11-28 18:02:24,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:24,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:24,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:02:24,086 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:02:24,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:24,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:02:24,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:02:24,192 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:02:24,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (1/1) ... [2018-11-28 18:02:24,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:02:24,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:02:24,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:02:24,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:02:24,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (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 [2018-11-28 18:02:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-11-28 18:02:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-11-28 18:02:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:02:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:02:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 18:02:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 18:02:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:02:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:02:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:02:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:02:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:02:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:02:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:02:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:02:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:02:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:02:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:02:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:02:24,976 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:02:24,976 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:02:24,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:24 BoogieIcfgContainer [2018-11-28 18:02:24,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:02:24,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:02:24,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:02:24,982 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:02:24,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:02:23" (1/3) ... [2018-11-28 18:02:24,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dfa41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:24, skipping insertion in model container [2018-11-28 18:02:24,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:24" (2/3) ... [2018-11-28 18:02:24,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dfa41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:24, skipping insertion in model container [2018-11-28 18:02:24,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:24" (3/3) ... [2018-11-28 18:02:24,986 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a_true-unreach-call.c [2018-11-28 18:02:24,996 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:02:25,005 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:02:25,023 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:02:25,055 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:02:25,056 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:02:25,056 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:02:25,056 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:02:25,057 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:02:25,057 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:02:25,057 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:02:25,058 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:02:25,058 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:02:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-28 18:02:25,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:02:25,085 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:25,087 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:25,089 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:25,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:25,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1885970115, now seen corresponding path program 1 times [2018-11-28 18:02:25,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:02:25,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:02:25,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:25,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:25,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:02:25,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:25,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:02:25,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:02:25,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:02:25,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:02:25,332 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2018-11-28 18:02:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:25,396 INFO L93 Difference]: Finished difference Result 100 states and 143 transitions. [2018-11-28 18:02:25,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:02:25,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-28 18:02:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:25,409 INFO L225 Difference]: With dead ends: 100 [2018-11-28 18:02:25,409 INFO L226 Difference]: Without dead ends: 49 [2018-11-28 18:02:25,413 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:02:25,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-28 18:02:25,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-28 18:02:25,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-28 18:02:25,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2018-11-28 18:02:25,461 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 23 [2018-11-28 18:02:25,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:25,461 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2018-11-28 18:02:25,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:02:25,463 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-11-28 18:02:25,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 18:02:25,464 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:25,464 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:25,467 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:25,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:25,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1787250273, now seen corresponding path program 1 times [2018-11-28 18:02:25,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:02:25,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:02:25,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:25,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:25,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:02:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:02:25,637 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:02:25,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:02:25 BoogieIcfgContainer [2018-11-28 18:02:25,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:02:25,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:02:25,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:02:25,706 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:02:25,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:24" (3/4) ... [2018-11-28 18:02:25,711 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:02:25,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:02:25,712 INFO L168 Benchmark]: Toolchain (without parser) took 2103.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:25,714 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:25,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.91 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 928.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:25,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 928.5 MB in the beginning and 1.1 GB in the end (delta: -206.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:25,717 INFO L168 Benchmark]: Boogie Preprocessor took 68.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:25,718 INFO L168 Benchmark]: RCFGBuilder took 717.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:25,718 INFO L168 Benchmark]: TraceAbstraction took 727.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:25,719 INFO L168 Benchmark]: Witness Printer took 6.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:25,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 472.91 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 928.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 928.5 MB in the beginning and 1.1 GB in the end (delta: -206.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 717.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 727.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=10737418259, \old(Lg2_log)=10737418260, \old(Lg3_log)=10737418242, \old(Lg4_log)=10737418246, \old(Lg5_log)=10737418249, \old(Lg6_log)=10737418257, \old(Lg7_log)=10737418256, \old(ln2_hi_log)=10737418244, \old(ln2_lo_log)=10737418251, \old(two25_log)=10737418255, \old(zero_log)=10737418253, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L132] float x = __VERIFIER_nondet_float(); [L134] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] CALL, EXPR isfinite_float(x) VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L115] __int32_t ix; VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L117] ieee_float_shape_type gf_u; [L118] gf_u.value = (x) [L119] EXPR gf_u.word [L119] (ix) = gf_u.word [L121] ix &= 0x7fffffff [L122] return (((ix) < 0x7f800000L)); VAL [\old(x)=10737418247, \result=1, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L134] RET, EXPR isfinite_float(x) VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] EXPR x < 0 && isfinite_float(x) VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] COND TRUE (x < 0 && isfinite_float(x)) [L136] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [\old(x)=10737418247, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [\old(x)=10737418247, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L136] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=10737418248, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L136] float res = __ieee754_logf(x); [L139] CALL, EXPR isnan_float(res) VAL [\old(x)=10737418248, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] return x != x; VAL [\old(x)=10737418248, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418248, zero_log=0] [L139] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418248, two25_log=33554432, x=10737418247, zero_log=0] [L139] COND TRUE !isnan_float(res) [L140] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418248, two25_log=33554432, x=10737418247, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 0 SDslu, 60 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 18:02:28,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:02:28,214 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:02:28,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:02:28,232 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:02:28,233 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:02:28,236 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:02:28,238 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:02:28,241 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:02:28,243 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:02:28,244 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:02:28,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:02:28,247 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:02:28,250 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:02:28,257 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:02:28,258 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:02:28,260 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:02:28,264 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:02:28,270 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:02:28,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:02:28,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:02:28,274 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:02:28,276 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:02:28,277 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:02:28,277 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:02:28,278 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:02:28,279 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:02:28,280 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:02:28,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:02:28,281 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:02:28,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:02:28,282 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:02:28,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:02:28,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:02:28,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:02:28,285 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:02:28,286 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:02:28,302 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:02:28,302 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:02:28,303 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:02:28,303 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:02:28,305 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:02:28,305 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:02:28,305 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:02:28,305 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:02:28,305 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:02:28,305 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:02:28,306 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:02:28,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:02:28,307 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:02:28,307 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:02:28,307 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:02:28,307 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:02:28,307 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:02:28,307 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:02:28,308 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:02:28,308 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:02:28,308 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:02:28,308 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:02:28,308 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:02:28,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:02:28,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:02:28,310 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:02:28,311 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:02:28,311 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:02:28,311 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:02:28,311 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:02:28,311 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:02:28,311 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:02:28,313 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2018-11-28 18:02:28,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:02:28,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:02:28,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:02:28,386 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:02:28,387 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:02:28,388 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-11-28 18:02:28,463 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd48c9c99/f3ce1913410342cf82fa69786f91e0c8/FLAG366d2aec2 [2018-11-28 18:02:28,966 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:02:28,967 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-11-28 18:02:28,975 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd48c9c99/f3ce1913410342cf82fa69786f91e0c8/FLAG366d2aec2 [2018-11-28 18:02:29,284 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd48c9c99/f3ce1913410342cf82fa69786f91e0c8 [2018-11-28 18:02:29,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:02:29,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:02:29,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:29,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:02:29,299 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:02:29,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb4b1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29, skipping insertion in model container [2018-11-28 18:02:29,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:02:29,339 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:02:29,560 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:29,572 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:02:29,624 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:29,658 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:02:29,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29 WrapperNode [2018-11-28 18:02:29,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:29,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:29,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:02:29,660 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:02:29,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:29,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:02:29,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:02:29,693 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:02:29,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (1/1) ... [2018-11-28 18:02:29,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:02:29,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:02:29,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:02:29,818 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:02:29,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (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 [2018-11-28 18:02:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-11-28 18:02:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-11-28 18:02:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:02:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:02:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:02:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 18:02:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 18:02:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:02:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:02:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:02:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:02:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:02:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:02:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:02:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:02:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:02:29,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:02:29,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:02:30,214 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:32,439 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:43,349 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:43,404 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:02:43,405 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:02:43,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:43 BoogieIcfgContainer [2018-11-28 18:02:43,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:02:43,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:02:43,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:02:43,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:02:43,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:02:29" (1/3) ... [2018-11-28 18:02:43,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb9ed73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:43, skipping insertion in model container [2018-11-28 18:02:43,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:29" (2/3) ... [2018-11-28 18:02:43,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb9ed73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:43, skipping insertion in model container [2018-11-28 18:02:43,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:43" (3/3) ... [2018-11-28 18:02:43,414 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a_true-unreach-call.c [2018-11-28 18:02:43,424 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:02:43,434 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:02:43,449 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:02:43,483 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:02:43,484 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:02:43,485 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:02:43,485 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:02:43,485 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:02:43,485 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:02:43,485 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:02:43,485 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:02:43,486 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:02:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-11-28 18:02:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 18:02:43,511 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:43,512 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:43,514 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:43,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:43,520 INFO L82 PathProgramCache]: Analyzing trace with hash -910802300, now seen corresponding path program 1 times [2018-11-28 18:02:43,525 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:43,525 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:02:43,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:43,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:02:43,878 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:43,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:43,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:02:43,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:02:43,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:02:43,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:02:43,924 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2018-11-28 18:02:43,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:43,962 INFO L93 Difference]: Finished difference Result 97 states and 139 transitions. [2018-11-28 18:02:43,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:02:43,964 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 18:02:43,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:43,975 INFO L225 Difference]: With dead ends: 97 [2018-11-28 18:02:43,976 INFO L226 Difference]: Without dead ends: 48 [2018-11-28 18:02:43,980 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:02:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-28 18:02:44,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-28 18:02:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-28 18:02:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-11-28 18:02:44,036 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 22 [2018-11-28 18:02:44,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:44,037 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-11-28 18:02:44,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:02:44,037 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-11-28 18:02:44,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:02:44,041 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:44,041 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:44,042 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:44,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:44,042 INFO L82 PathProgramCache]: Analyzing trace with hash -2100796160, now seen corresponding path program 1 times [2018-11-28 18:02:44,043 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:44,043 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:02:44,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:44,346 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:02:44,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:44,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:44,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:02:44,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:02:44,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:02:44,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:02:44,418 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 3 states. [2018-11-28 18:02:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:44,488 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2018-11-28 18:02:44,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:02:44,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-28 18:02:44,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:44,491 INFO L225 Difference]: With dead ends: 81 [2018-11-28 18:02:44,493 INFO L226 Difference]: Without dead ends: 48 [2018-11-28 18:02:44,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:02:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-28 18:02:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-28 18:02:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-28 18:02:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2018-11-28 18:02:44,503 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 23 [2018-11-28 18:02:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:44,504 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2018-11-28 18:02:44,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:02:44,504 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2018-11-28 18:02:44,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 18:02:44,506 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:44,506 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:44,506 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:44,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:44,507 INFO L82 PathProgramCache]: Analyzing trace with hash 687628896, now seen corresponding path program 1 times [2018-11-28 18:02:44,507 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:44,508 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:02:44,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:44,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:02:45,228 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:45,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:45,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:02:45,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:02:45,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:02:45,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:02:45,247 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 7 states. [2018-11-28 18:02:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:49,641 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2018-11-28 18:02:49,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:02:49,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-11-28 18:02:49,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:49,646 INFO L225 Difference]: With dead ends: 62 [2018-11-28 18:02:49,646 INFO L226 Difference]: Without dead ends: 52 [2018-11-28 18:02:49,647 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:02:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-28 18:02:49,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-11-28 18:02:49,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-28 18:02:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-11-28 18:02:49,656 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 31 [2018-11-28 18:02:49,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:49,657 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2018-11-28 18:02:49,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:02:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-11-28 18:02:49,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 18:02:49,659 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:49,659 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:49,659 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:49,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:49,660 INFO L82 PathProgramCache]: Analyzing trace with hash -586401658, now seen corresponding path program 1 times [2018-11-28 18:02:49,660 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:49,660 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:02:49,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:50,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:50,819 WARN L180 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 18:02:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:02:51,607 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:51,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:51,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 18:02:51,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 18:02:51,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 18:02:51,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:02:51,629 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 8 states. [2018-11-28 18:02:52,990 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 18:02:53,358 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 18:02:53,954 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-28 18:03:08,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:08,834 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-11-28 18:03:08,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:03:08,835 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-28 18:03:08,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:08,837 INFO L225 Difference]: With dead ends: 55 [2018-11-28 18:03:08,837 INFO L226 Difference]: Without dead ends: 48 [2018-11-28 18:03:08,838 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:03:08,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-28 18:03:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-28 18:03:08,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-28 18:03:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-11-28 18:03:08,851 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 32 [2018-11-28 18:03:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:08,852 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-11-28 18:03:08,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 18:03:08,852 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-11-28 18:03:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 18:03:08,854 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:08,855 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:08,855 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:08,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:08,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2082270108, now seen corresponding path program 1 times [2018-11-28 18:03:08,857 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:08,857 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 18:03:08,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:08,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:09,123 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:09,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:09,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:03:09,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:03:09,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:03:09,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:03:09,137 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 7 states. [2018-11-28 18:03:12,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:12,429 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-11-28 18:03:12,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 18:03:12,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 18:03:12,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:12,431 INFO L225 Difference]: With dead ends: 52 [2018-11-28 18:03:12,431 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:12,432 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:03:12,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:12,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 18:03:12,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:12,433 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:12,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:03:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:12,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:12,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:12,830 WARN L180 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-11-28 18:03:13,007 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2018-11-28 18:03:13,196 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-11-28 18:03:13,199 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-11-28 18:03:13,199 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-11-28 18:03:13,199 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-11-28 18:03:13,199 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:13,200 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:13,200 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:13,200 INFO L448 ceAbstractionStarter]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2018-11-28 18:03:13,200 INFO L448 ceAbstractionStarter]: For program point isfinite_floatFINAL(lines 114 123) no Hoare annotation was computed. [2018-11-28 18:03:13,200 INFO L451 ceAbstractionStarter]: At program point L116-2(lines 116 120) the Hoare annotation is: true [2018-11-28 18:03:13,200 INFO L448 ceAbstractionStarter]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2018-11-28 18:03:13,200 INFO L451 ceAbstractionStarter]: At program point isfinite_floatENTRY(lines 114 123) the Hoare annotation is: true [2018-11-28 18:03:13,201 INFO L448 ceAbstractionStarter]: For program point isfinite_floatEXIT(lines 114 123) no Hoare annotation was computed. [2018-11-28 18:03:13,201 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-11-28 18:03:13,201 INFO L448 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-11-28 18:03:13,201 INFO L444 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))) (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|))) [2018-11-28 18:03:13,201 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-11-28 18:03:13,201 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-11-28 18:03:13,202 INFO L444 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-11-28 18:03:13,202 INFO L448 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2018-11-28 18:03:13,202 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-11-28 18:03:13,202 INFO L444 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-11-28 18:03:13,202 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-11-28 18:03:13,202 INFO L448 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2018-11-28 18:03:13,202 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-11-28 18:03:13,203 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-11-28 18:03:13,204 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-11-28 18:03:13,204 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-11-28 18:03:13,204 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-11-28 18:03:13,204 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:13,204 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-11-28 18:03:13,204 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:13,204 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:13,205 INFO L448 ceAbstractionStarter]: For program point L134-6(lines 134 143) no Hoare annotation was computed. [2018-11-28 18:03:13,205 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 125 146) the Hoare annotation is: true [2018-11-28 18:03:13,205 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 125 146) no Hoare annotation was computed. [2018-11-28 18:03:13,205 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2018-11-28 18:03:13,205 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 125 146) no Hoare annotation was computed. [2018-11-28 18:03:13,205 INFO L448 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-11-28 18:03:13,206 INFO L444 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (fp.lt main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) (exists ((__ieee754_logf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven __ieee754_logf_~x __ieee754_logf_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))))) [2018-11-28 18:03:13,206 INFO L448 ceAbstractionStarter]: For program point L139-1(lines 139 142) no Hoare annotation was computed. [2018-11-28 18:03:13,206 INFO L444 ceAbstractionStarter]: At program point L136(line 136) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (fp.lt main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) [2018-11-28 18:03:13,206 INFO L448 ceAbstractionStarter]: For program point L136-1(line 136) no Hoare annotation was computed. [2018-11-28 18:03:13,206 INFO L448 ceAbstractionStarter]: For program point L134(line 134) no Hoare annotation was computed. [2018-11-28 18:03:13,206 INFO L444 ceAbstractionStarter]: At program point L134-1(line 134) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (fp.lt main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) |main_#t~short12|)) [2018-11-28 18:03:13,207 INFO L448 ceAbstractionStarter]: For program point L134-2(line 134) no Hoare annotation was computed. [2018-11-28 18:03:13,207 INFO L448 ceAbstractionStarter]: For program point L134-4(lines 134 143) no Hoare annotation was computed. [2018-11-28 18:03:13,216 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,217 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,218 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,218 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,218 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,222 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,223 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,223 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,223 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,223 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,225 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,225 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,226 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,226 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,227 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,227 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,227 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,228 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,228 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,228 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,228 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:13 BoogieIcfgContainer [2018-11-28 18:03:13,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:13,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:13,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:13,232 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:13,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:43" (3/4) ... [2018-11-28 18:03:13,236 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:13,244 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 18:03:13,244 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:13,244 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isfinite_float [2018-11-28 18:03:13,244 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-28 18:03:13,245 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:13,252 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-11-28 18:03:13,252 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-28 18:03:13,253 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:03:13,253 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 18:03:13,286 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) [2018-11-28 18:03:13,287 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) [2018-11-28 18:03:13,287 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-11-28 18:03:13,334 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:13,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:13,338 INFO L168 Benchmark]: Toolchain (without parser) took 44049.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 954.0 MB in the beginning and 891.3 MB in the end (delta: 62.7 MB). Peak memory consumption was 196.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:13,340 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:13,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.10 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 936.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:13,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.43 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:13,343 INFO L168 Benchmark]: Boogie Preprocessor took 125.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:13,346 INFO L168 Benchmark]: RCFGBuilder took 13587.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:13,347 INFO L168 Benchmark]: TraceAbstraction took 29824.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.3 MB in the end (delta: 202.2 MB). Peak memory consumption was 202.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:13,347 INFO L168 Benchmark]: Witness Printer took 103.03 ms. Allocated memory is still 1.2 GB. Free memory is still 891.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:13,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.10 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 936.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.43 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 125.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 13587.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29824.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.3 MB in the end (delta: 202.2 MB). Peak memory consumption was 202.2 MB. Max. memory is 11.5 GB. * Witness Printer took 103.03 ms. Allocated memory is still 1.2 GB. Free memory is still 891.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: 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: 61]: Loop Invariant [2018-11-28 18:03:13,365 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,368 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,368 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,368 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,369 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,370 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,370 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,370 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant [2018-11-28 18:03:13,371 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,372 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) - InvariantResult [Line: 52]: Loop Invariant [2018-11-28 18:03:13,372 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,372 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,372 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,376 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,376 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,377 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:13,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:13,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 53 locations, 1 error locations. SAFE Result, 29.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 25.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 260 SDtfs, 98 SDslu, 641 SDs, 0 SdLazy, 166 SolverSat, 12 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 22.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 26 PreInvPairs, 33 NumberOfFragments, 127 HoareAnnotationTreeSize, 26 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 88 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 136 ConstructedInterpolants, 9 QuantifiedInterpolants, 15322 SizeOfPredicates, 12 NumberOfNonLiveVariables, 518 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...