/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_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 cbf38875841624eee0d839935b3b6d34a59b0b20 ............................................................................................................................................................................................................................................................................................. 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_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 cbf38875841624eee0d839935b3b6d34a59b0b20 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:30:09,781 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:30:09,783 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:30:09,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:30:09,796 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:30:09,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:30:09,799 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:30:09,801 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:30:09,803 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:30:09,804 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:30:09,805 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:30:09,805 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:30:09,806 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:30:09,807 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:30:09,809 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:30:09,810 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:30:09,811 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:30:09,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:30:09,815 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:30:09,817 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:30:09,818 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:30:09,819 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:30:09,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:30:09,823 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:30:09,823 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:30:09,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:30:09,826 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:30:09,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:30:09,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:30:09,829 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:30:09,829 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:30:09,830 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:30:09,830 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:30:09,831 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:30:09,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:30:09,833 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:30:09,833 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:30:09,849 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:30:09,849 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:30:09,850 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:30:09,850 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:30:09,851 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:30:09,851 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:30:09,852 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:30:09,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:30:09,852 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:30:09,852 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:30:09,852 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:30:09,852 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:30:09,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:30:09,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:30:09,853 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:30:09,853 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:30:09,853 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:30:09,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:30:09,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:30:09,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:30:09,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:30:09,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:30:09,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:09,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:30:09,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:30:09,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:30:09,856 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:30:09,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:30:09,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:30:09,858 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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-09-20 15:30:09,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:30:09,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:30:09,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:30:09,929 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:30:09,929 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:30:09,930 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-20 15:30:10,290 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79531a117/4fc51c3a1605478697a875a24d50aa7b/FLAGb52b4d993 [2018-09-20 15:30:10,462 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:30:10,463 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-20 15:30:10,470 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79531a117/4fc51c3a1605478697a875a24d50aa7b/FLAGb52b4d993 [2018-09-20 15:30:10,486 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79531a117/4fc51c3a1605478697a875a24d50aa7b [2018-09-20 15:30:10,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:30:10,493 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:30:10,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:10,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:30:10,502 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:30:10,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be2242d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10, skipping insertion in model container [2018-09-20 15:30:10,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,519 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:30:10,807 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:10,829 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:30:10,849 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:10,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10 WrapperNode [2018-09-20 15:30:10,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:10,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:30:10,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:30:10,882 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:30:10,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (1/1) ... [2018-09-20 15:30:10,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:30:10,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:30:10,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:30:10,932 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:30:10,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (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 [2018-09-20 15:30:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:30:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:30:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-09-20 15:30:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:30:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:30:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:30:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-09-20 15:30:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:30:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:30:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:30:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:30:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:30:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:30:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:30:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:30:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:30:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:30:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:30:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:30:11,659 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:11,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:11 BoogieIcfgContainer [2018-09-20 15:30:11,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:11,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:11,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:11,665 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:11,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:30:10" (1/3) ... [2018-09-20 15:30:11,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397e1316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:11, skipping insertion in model container [2018-09-20 15:30:11,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:10" (2/3) ... [2018-09-20 15:30:11,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397e1316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:11, skipping insertion in model container [2018-09-20 15:30:11,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:11" (3/3) ... [2018-09-20 15:30:11,670 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-09-20 15:30:11,680 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:11,690 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:11,741 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:11,742 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:11,742 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:11,742 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:11,743 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:11,743 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:11,743 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:11,743 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:11,743 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-09-20 15:30:11,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:30:11,782 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:11,783 INFO L376 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] [2018-09-20 15:30:11,785 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:11,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1609911698, now seen corresponding path program 1 times [2018-09-20 15:30:11,793 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:30:11,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:30:11,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:11,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:11,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:11,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:11,934 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:11,935 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:11,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:11,952 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:11,952 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:11,955 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-09-20 15:30:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:11,982 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2018-09-20 15:30:11,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:11,984 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:30:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:11,995 INFO L225 Difference]: With dead ends: 108 [2018-09-20 15:30:11,995 INFO L226 Difference]: Without dead ends: 54 [2018-09-20 15:30:11,999 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-20 15:30:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-09-20 15:30:12,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-20 15:30:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2018-09-20 15:30:12,041 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 22 [2018-09-20 15:30:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:12,042 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2018-09-20 15:30:12,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-09-20 15:30:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:30:12,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:12,044 INFO L376 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] [2018-09-20 15:30:12,044 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:12,045 INFO L82 PathProgramCache]: Analyzing trace with hash 669796037, now seen corresponding path program 1 times [2018-09-20 15:30:12,045 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:30:12,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:30:12,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:12,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:12,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:30:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:30:12,196 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:30:12,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:12 BoogieIcfgContainer [2018-09-20 15:30:12,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:12,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:12,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:12,234 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:12,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:11" (3/4) ... [2018-09-20 15:30:12,240 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:30:12,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:12,243 INFO L168 Benchmark]: Toolchain (without parser) took 1752.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:12,246 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:12,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 939.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:12,248 INFO L168 Benchmark]: Boogie Preprocessor took 50.17 ms. Allocated memory is still 1.0 GB. Free memory is still 939.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:12,249 INFO L168 Benchmark]: RCFGBuilder took 728.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 939.6 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:12,252 INFO L168 Benchmark]: TraceAbstraction took 570.45 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:12,253 INFO L168 Benchmark]: Witness Printer took 7.83 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. [2018-09-20 15:30:12,260 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 939.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.17 ms. Allocated memory is still 1.0 GB. Free memory is still 939.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 728.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 939.6 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 570.45 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 7.83 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: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L53] CALL, EXPR trunc_float(x) VAL [\old(x)=9] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=9, x=9] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=9, gf_u={7:0}, x=9] [L16] FCALL gf_u.value = (x) VAL [\old(x)=9, gf_u={7:0}, x=9] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, x=9] [L17] (w) = gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, w=3, x=9] [L17] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=5, \old(x)=9, gf_u={7:0}, gf_u.word=3, w=3, x=9] [L18] COND FALSE !(0) VAL [\old(x)=9, w=3, x=9] [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=3, x=9] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=3, x=9] [L37] COND TRUE exponent_less_127 == 255 [L38] RET return x + x; VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=3, x=9] [L53] EXPR trunc_float(x) VAL [trunc_float(x)=8, x=9] [L53] float res = trunc_float(x); [L56] CALL, EXPR isnan_float(res) VAL [\old(x)=8] [L44] RET return x != x; VAL [\old(x)=8, \result=0, x=8] [L56] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=8, x=9] [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() VAL [res=8, x=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-40ef509 [2018-09-20 15:30:14,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:30:14,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:30:14,622 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:30:14,622 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:30:14,623 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:30:14,624 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:30:14,626 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:30:14,627 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:30:14,628 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:30:14,629 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:30:14,629 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:30:14,630 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:30:14,632 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:30:14,633 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:30:14,634 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:30:14,635 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:30:14,637 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:30:14,639 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:30:14,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:30:14,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:30:14,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:30:14,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:30:14,646 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:30:14,647 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:30:14,648 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:30:14,649 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:30:14,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:30:14,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:30:14,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:30:14,653 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:30:14,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:30:14,654 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:30:14,654 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:30:14,656 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:30:14,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:30:14,657 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:30:14,675 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:30:14,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:30:14,676 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:30:14,676 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:30:14,677 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:30:14,677 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:30:14,677 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:30:14,678 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:30:14,678 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:30:14,678 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:30:14,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:30:14,679 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:30:14,679 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:30:14,679 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:30:14,679 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:30:14,679 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:30:14,680 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:30:14,680 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:30:14,680 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:30:14,680 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:30:14,682 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:30:14,682 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:30:14,682 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:30:14,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:14,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:30:14,683 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:30:14,683 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:30:14,683 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:30:14,683 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:30:14,684 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:30:14,685 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:30:14,685 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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-09-20 15:30:14,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:30:14,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:30:14,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:30:14,744 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:30:14,745 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:30:14,746 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-20 15:30:15,112 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17fbfd5ab/41e9ab045a394a73a47c3132e2f6b354/FLAG521bcb16a [2018-09-20 15:30:15,282 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:30:15,283 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-20 15:30:15,293 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17fbfd5ab/41e9ab045a394a73a47c3132e2f6b354/FLAG521bcb16a [2018-09-20 15:30:15,318 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17fbfd5ab/41e9ab045a394a73a47c3132e2f6b354 [2018-09-20 15:30:15,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:30:15,327 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:30:15,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:15,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:30:15,338 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:30:15,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327e7a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15, skipping insertion in model container [2018-09-20 15:30:15,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,355 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:30:15,604 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:15,623 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:30:15,646 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:15,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15 WrapperNode [2018-09-20 15:30:15,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:15,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:30:15,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:30:15,699 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:30:15,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... [2018-09-20 15:30:15,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:30:15,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:30:15,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:30:15,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:30:15,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:15,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:30:15,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:30:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-09-20 15:30:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:30:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:30:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:30:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-09-20 15:30:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:30:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:30:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:30:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:30:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:30:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:30:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:30:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:30:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:30:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:30:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:30:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:30:16,359 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:16,384 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:16,489 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:16,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:16 BoogieIcfgContainer [2018-09-20 15:30:16,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:16,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:16,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:16,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:16,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:30:15" (1/3) ... [2018-09-20 15:30:16,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd69cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:16, skipping insertion in model container [2018-09-20 15:30:16,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:15" (2/3) ... [2018-09-20 15:30:16,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd69cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:16, skipping insertion in model container [2018-09-20 15:30:16,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:16" (3/3) ... [2018-09-20 15:30:16,499 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-09-20 15:30:16,510 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:16,525 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:16,578 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:16,579 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:16,579 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:16,579 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:16,579 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:16,579 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:16,579 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:16,580 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:16,580 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:16,601 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-09-20 15:30:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:30:16,608 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:16,609 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:16,612 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:16,618 INFO L82 PathProgramCache]: Analyzing trace with hash -669224041, now seen corresponding path program 1 times [2018-09-20 15:30:16,624 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:16,625 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 [2018-09-20 15:30:16,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:16,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:16,739 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:16,754 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:16,755 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:16,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:16,770 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:16,771 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:16,773 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-09-20 15:30:16,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:16,799 INFO L93 Difference]: Finished difference Result 106 states and 124 transitions. [2018-09-20 15:30:16,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:16,801 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:30:16,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:16,814 INFO L225 Difference]: With dead ends: 106 [2018-09-20 15:30:16,814 INFO L226 Difference]: Without dead ends: 53 [2018-09-20 15:30:16,821 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:16,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-20 15:30:16,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-09-20 15:30:16,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-20 15:30:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-09-20 15:30:16,873 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 21 [2018-09-20 15:30:16,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:16,873 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-09-20 15:30:16,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-09-20 15:30:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:30:16,875 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:16,875 INFO L376 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] [2018-09-20 15:30:16,876 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:16,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1272495203, now seen corresponding path program 1 times [2018-09-20 15:30:16,877 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:16,878 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) [2018-09-20 15:30:16,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:16,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:17,092 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:17,106 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:17,106 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:30:17,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:30:17,109 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:30:17,109 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:30:17,110 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 4 states. [2018-09-20 15:30:17,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:17,301 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2018-09-20 15:30:17,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:30:17,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-09-20 15:30:17,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:17,309 INFO L225 Difference]: With dead ends: 66 [2018-09-20 15:30:17,311 INFO L226 Difference]: Without dead ends: 56 [2018-09-20 15:30:17,312 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:30:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-20 15:30:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2018-09-20 15:30:17,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-20 15:30:17,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2018-09-20 15:30:17,324 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 30 [2018-09-20 15:30:17,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:17,324 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2018-09-20 15:30:17,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:30:17,325 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-09-20 15:30:17,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:30:17,326 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:17,327 INFO L376 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] [2018-09-20 15:30:17,328 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:17,328 INFO L82 PathProgramCache]: Analyzing trace with hash -997630018, now seen corresponding path program 1 times [2018-09-20 15:30:17,329 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:17,329 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) [2018-09-20 15:30:17,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:17,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:17,991 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2018-09-20 15:30:17,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:17,995 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:18,006 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:18,007 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:18,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:18,007 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:18,008 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:18,008 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 9 states. [2018-09-20 15:30:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:18,475 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2018-09-20 15:30:18,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:30:18,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-20 15:30:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:18,478 INFO L225 Difference]: With dead ends: 61 [2018-09-20 15:30:18,479 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:30:18,480 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:30:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:30:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:30:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:30:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-20 15:30:18,493 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 31 [2018-09-20 15:30:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:18,494 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-20 15:30:18,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-20 15:30:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:30:18,501 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:18,502 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:18,502 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:18,502 INFO L82 PathProgramCache]: Analyzing trace with hash 428757916, now seen corresponding path program 1 times [2018-09-20 15:30:18,503 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:18,503 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 [2018-09-20 15:30:18,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:18,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:18,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:30:18,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:30:18,623 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:18,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:18,644 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:18,644 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:18,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:30:18,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:30:18,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:18,761 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:18,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:18,787 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:19,331 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:19,347 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:19,347 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:19,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:19,348 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:19,348 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:19,349 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 9 states. [2018-09-20 15:30:20,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:20,098 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-09-20 15:30:20,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:30:20,099 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-20 15:30:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:20,100 INFO L225 Difference]: With dead ends: 52 [2018-09-20 15:30:20,100 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:30:20,101 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:30:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:30:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:30:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:30:20,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:30:20,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-09-20 15:30:20,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:20,103 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:30:20,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:30:20,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:30:20,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:30:20,368 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2018-09-20 15:30:20,477 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 44) no Hoare annotation was computed. [2018-09-20 15:30:20,477 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 44) the Hoare annotation is: true [2018-09-20 15:30:20,477 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 44) no Hoare annotation was computed. [2018-09-20 15:30:20,478 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:20,478 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:20,478 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:20,478 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:20,478 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:30:20,478 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:20,478 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:20,479 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 46 62) the Hoare annotation is: true [2018-09-20 15:30:20,479 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 46 62) no Hoare annotation was computed. [2018-09-20 15:30:20,479 INFO L426 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-09-20 15:30:20,479 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 46 62) no Hoare annotation was computed. [2018-09-20 15:30:20,479 INFO L422 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= .cse0 main_~res~0))) [2018-09-20 15:30:20,479 INFO L426 ceAbstractionStarter]: For program point L56-1(lines 56 59) no Hoare annotation was computed. [2018-09-20 15:30:20,480 INFO L422 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:30:20,480 INFO L426 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-09-20 15:30:20,480 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2018-09-20 15:30:20,480 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-20 15:30:20,480 INFO L426 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-09-20 15:30:20,480 INFO L426 ceAbstractionStarter]: For program point L31-2(line 31) no Hoare annotation was computed. [2018-09-20 15:30:20,480 INFO L426 ceAbstractionStarter]: For program point L31-3(line 31) no Hoare annotation was computed. [2018-09-20 15:30:20,481 INFO L426 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-09-20 15:30:20,481 INFO L426 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-09-20 15:30:20,481 INFO L426 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2018-09-20 15:30:20,481 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-20 15:30:20,481 INFO L426 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-09-20 15:30:20,481 INFO L426 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-09-20 15:30:20,481 INFO L426 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2018-09-20 15:30:20,482 INFO L426 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-09-20 15:30:20,482 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-09-20 15:30:20,482 INFO L426 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-09-20 15:30:20,482 INFO L422 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32))))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))))) [2018-09-20 15:30:20,482 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:30:20,482 INFO L426 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-09-20 15:30:20,483 INFO L426 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-09-20 15:30:20,483 INFO L426 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-09-20 15:30:20,483 INFO L426 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2018-09-20 15:30:20,483 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 15:30:20,483 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-20 15:30:20,483 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-20 15:30:20,483 INFO L426 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-09-20 15:30:20,484 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-09-20 15:30:20,484 INFO L426 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-09-20 15:30:20,484 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:30:20,484 INFO L426 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-09-20 15:30:20,484 INFO L429 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-09-20 15:30:20,484 INFO L426 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-09-20 15:30:20,484 INFO L426 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-09-20 15:30:20,485 INFO L426 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-09-20 15:30:20,485 INFO L422 ceAbstractionStarter]: At program point L30-3(lines 30 34) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32))))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))))) [2018-09-20 15:30:20,485 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-20 15:30:20,485 INFO L426 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-09-20 15:30:20,485 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-09-20 15:30:20,485 INFO L422 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-09-20 15:30:20,486 INFO L426 ceAbstractionStarter]: For program point L14-4(lines 14 18) no Hoare annotation was computed. [2018-09-20 15:30:20,498 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,499 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,499 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,501 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,502 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,504 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,504 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,504 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,506 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,506 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,506 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,506 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,507 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,507 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,507 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,508 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,509 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,509 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,509 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,509 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,510 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,510 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,510 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:20 BoogieIcfgContainer [2018-09-20 15:30:20,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:20,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:20,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:20,514 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:20,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:16" (3/4) ... [2018-09-20 15:30:20,518 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:30:20,526 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:30:20,526 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:30:20,527 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:30:20,527 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-09-20 15:30:20,532 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-09-20 15:30:20,532 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:30:20,533 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:30:20,563 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:30:20,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) [2018-09-20 15:30:20,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) [2018-09-20 15:30:20,592 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:30:20,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:20,593 INFO L168 Benchmark]: Toolchain (without parser) took 5269.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 953.2 MB in the beginning and 947.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:20,595 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:20,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:20,597 INFO L168 Benchmark]: Boogie Preprocessor took 59.31 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:20,598 INFO L168 Benchmark]: RCFGBuilder took 731.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:20,599 INFO L168 Benchmark]: TraceAbstraction took 4021.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.3 MB in the end (delta: 147.7 MB). Peak memory consumption was 147.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:20,599 INFO L168 Benchmark]: Witness Printer took 79.40 ms. Allocated memory is still 1.2 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:20,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.31 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 731.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4021.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.3 MB in the end (delta: 147.7 MB). Peak memory consumption was 147.7 MB. Max. memory is 11.5 GB. * Witness Printer took 79.40 ms. Allocated memory is still 1.2 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 57]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-09-20 15:30:20,621 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,621 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,622 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,622 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,622 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,622 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,627 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,628 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,630 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,630 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,630 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,631 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,631 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,631 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,631 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,633 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) - InvariantResult [Line: 24]: Loop Invariant [2018-09-20 15:30:20,636 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,636 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,636 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,636 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,637 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,638 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,638 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,638 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,639 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,639 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,641 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,641 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,641 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,641 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,642 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-09-20 15:30:20,642 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 191 SDtfs, 129 SDslu, 519 SDs, 0 SdLazy, 124 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 134 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 119 ConstructedInterpolants, 17 QuantifiedInterpolants, 21778 SizeOfPredicates, 14 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...