./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86466cf5e99320b887fae6f726f2af775c2eaef8 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86466cf5e99320b887fae6f726f2af775c2eaef8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:45:09,553 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:45:09,554 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:45:09,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:45:09,563 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:45:09,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:45:09,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:45:09,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:45:09,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:45:09,567 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:45:09,568 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:45:09,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:45:09,569 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:45:09,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:45:09,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:45:09,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:45:09,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:45:09,573 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:45:09,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:45:09,576 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:45:09,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:45:09,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:45:09,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:45:09,579 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:45:09,579 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:45:09,580 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:45:09,581 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:45:09,581 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:45:09,582 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:45:09,583 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:45:09,583 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:45:09,583 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:45:09,584 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:45:09,584 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:45:09,584 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:45:09,585 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:45:09,585 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:45:09,595 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:45:09,595 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:45:09,596 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:45:09,596 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:45:09,596 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:45:09,596 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:45:09,596 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:45:09,596 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:45:09,596 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:45:09,597 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:45:09,597 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:45:09,597 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:45:09,597 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:45:09,598 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:45:09,598 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:45:09,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:45:09,598 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:45:09,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:45:09,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:45:09,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:45:09,599 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:45:09,599 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:45:09,599 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:45:09,599 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:45:09,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:45:09,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:45:09,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:45:09,599 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:45:09,600 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:45:09,600 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:45:09,600 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:45:09,600 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:45:09,600 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:45:09,600 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:45:09,600 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:45:09,601 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:45:09,601 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:45:09,601 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan 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 -> Taipan 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-11-18 12:45:09,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:45:09,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:45:09,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:45:09,636 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:45:09,636 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:45:09,637 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-18 12:45:09,678 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/e934cf234/79887285b3564037b1524712cd1a644e/FLAGfbfa2d9f9 [2018-11-18 12:45:10,038 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:45:10,039 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-18 12:45:10,045 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/e934cf234/79887285b3564037b1524712cd1a644e/FLAGfbfa2d9f9 [2018-11-18 12:45:10,439 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/e934cf234/79887285b3564037b1524712cd1a644e [2018-11-18 12:45:10,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:45:10,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:45:10,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:45:10,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:45:10,445 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:45:10,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486b3616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10, skipping insertion in model container [2018-11-18 12:45:10,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:45:10,472 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:45:10,610 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:45:10,613 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:45:10,637 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:45:10,651 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:45:10,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10 WrapperNode [2018-11-18 12:45:10,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:45:10,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:45:10,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:45:10,652 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:45:10,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:45:10,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:45:10,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:45:10,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:45:10,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... [2018-11-18 12:45:10,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:45:10,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:45:10,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:45:10,732 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:45:10,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:45:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:45:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 12:45:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:45:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 12:45:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:45:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:45:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:45:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:45:10,956 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:45:10,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:45:10 BoogieIcfgContainer [2018-11-18 12:45:10,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:45:10,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:45:10,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:45:10,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:45:10,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:45:10" (1/3) ... [2018-11-18 12:45:10,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc46740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:45:10, skipping insertion in model container [2018-11-18 12:45:10,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:10" (2/3) ... [2018-11-18 12:45:10,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc46740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:45:10, skipping insertion in model container [2018-11-18 12:45:10,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:45:10" (3/3) ... [2018-11-18 12:45:10,961 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-11-18 12:45:10,967 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:45:10,972 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:45:10,983 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:45:11,004 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:45:11,004 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:45:11,005 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:45:11,005 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:45:11,005 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:45:11,005 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:45:11,005 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:45:11,005 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:45:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 12:45:11,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 12:45:11,024 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:45:11,025 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:45:11,027 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:45:11,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:45:11,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1808585883, now seen corresponding path program 1 times [2018-11-18 12:45:11,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:45:11,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:45:11,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:45:11,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:45:11,069 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:45:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:45:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:45:11,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:45:11,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:45:11,150 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:45:11,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:45:11,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:45:11,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:45:11,164 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 12:45:11,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:45:11,180 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2018-11-18 12:45:11,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:45:11,181 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 12:45:11,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:45:11,191 INFO L225 Difference]: With dead ends: 78 [2018-11-18 12:45:11,191 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 12:45:11,194 INFO L604 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 [2018-11-18 12:45:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 12:45:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 12:45:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:45:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-11-18 12:45:11,223 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2018-11-18 12:45:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:45:11,224 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-11-18 12:45:11,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:45:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-11-18 12:45:11,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 12:45:11,225 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:45:11,225 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:45:11,225 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:45:11,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:45:11,226 INFO L82 PathProgramCache]: Analyzing trace with hash 941490085, now seen corresponding path program 1 times [2018-11-18 12:45:11,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:45:11,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:45:11,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:45:11,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:45:11,227 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:45:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:45:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:45:11,289 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:45:11,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:45:11 BoogieIcfgContainer [2018-11-18 12:45:11,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:45:11,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:45:11,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:45:11,316 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:45:11,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:45:10" (3/4) ... [2018-11-18 12:45:11,318 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:45:11,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:45:11,319 INFO L168 Benchmark]: Toolchain (without parser) took 877.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -162.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:45:11,320 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:45:11,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.99 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 937.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:45:11,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.40 ms. Allocated memory is still 1.0 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:45:11,321 INFO L168 Benchmark]: Boogie Preprocessor took 63.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 937.0 MB in the beginning and 1.2 GB in the end (delta: -226.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:45:11,321 INFO L168 Benchmark]: RCFGBuilder took 224.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:45:11,322 INFO L168 Benchmark]: TraceAbstraction took 358.22 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:45:11,322 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:45:11,324 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.99 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 937.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.40 ms. Allocated memory is still 1.0 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 937.0 MB in the beginning and 1.2 GB in the end (delta: -226.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 224.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 358.22 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 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: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450960, \old(Lg2_log)=6442450961, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450954, \old(two25_log)=6442450957, \old(zero_log)=6442450956, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] float x = 0.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L37] FCALL ieee_float_shape_type gf_u; [L38] FCALL gf_u.value = (x) [L39] EXPR, FCALL gf_u.word [L39] (ix) = gf_u.word [L40] COND FALSE !(0) VAL [\old(x)=6442450952, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L42] k = 0 VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L120] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L120] float res = __ieee754_logf(x); [L123] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] RET return x != x; VAL [\old(x)=6442450949, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450949, zero_log=0] [L123] EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450952, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 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=43occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 0.1.23-5842f4b [2018-11-18 12:45:12,825 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:45:12,826 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:45:12,833 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:45:12,834 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:45:12,834 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:45:12,835 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:45:12,836 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:45:12,837 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:45:12,838 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:45:12,839 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:45:12,839 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:45:12,840 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:45:12,840 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:45:12,841 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:45:12,842 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:45:12,842 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:45:12,844 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:45:12,845 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:45:12,847 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:45:12,848 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:45:12,849 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:45:12,851 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:45:12,851 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:45:12,851 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:45:12,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:45:12,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:45:12,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:45:12,854 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:45:12,855 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:45:12,855 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:45:12,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:45:12,856 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:45:12,856 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:45:12,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:45:12,857 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:45:12,858 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:45:12,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:45:12,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:45:12,870 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:45:12,870 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:45:12,870 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:45:12,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:45:12,870 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:45:12,870 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:45:12,871 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:45:12,871 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:45:12,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:45:12,871 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:45:12,871 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:45:12,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:45:12,873 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:45:12,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:45:12,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:45:12,873 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:45:12,873 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:45:12,873 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:45:12,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:45:12,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:45:12,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:45:12,874 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:45:12,874 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:45:12,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:45:12,874 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:45:12,874 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:45:12,874 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan 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 -> Taipan 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-11-18 12:45:12,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:45:12,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:45:12,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:45:12,915 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:45:12,916 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:45:12,916 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-18 12:45:12,954 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/392cbe170/d6f38c6a6074422995d67b140ab60d63/FLAG65e63effa [2018-11-18 12:45:13,269 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:45:13,269 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-18 12:45:13,274 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/392cbe170/d6f38c6a6074422995d67b140ab60d63/FLAG65e63effa [2018-11-18 12:45:13,284 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/data/392cbe170/d6f38c6a6074422995d67b140ab60d63 [2018-11-18 12:45:13,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:45:13,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:45:13,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:45:13,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:45:13,290 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:45:13,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c7639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13, skipping insertion in model container [2018-11-18 12:45:13,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:45:13,317 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:45:13,464 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:45:13,469 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:45:13,502 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:45:13,520 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:45:13,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13 WrapperNode [2018-11-18 12:45:13,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:45:13,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:45:13,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:45:13,521 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:45:13,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:45:13,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:45:13,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:45:13,543 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:45:13,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... [2018-11-18 12:45:13,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:45:13,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:45:13,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:45:13,622 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:45:13,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:45:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:45:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:45:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 12:45:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 12:45:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 12:45:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:45:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:45:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:45:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 12:45:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 12:45:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:45:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:45:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:45:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 12:45:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:45:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:45:13,886 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:45:26,576 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:45:26,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:45:26 BoogieIcfgContainer [2018-11-18 12:45:26,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:45:26,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:45:26,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:45:26,579 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:45:26,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:45:13" (1/3) ... [2018-11-18 12:45:26,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ab94e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:45:26, skipping insertion in model container [2018-11-18 12:45:26,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:45:13" (2/3) ... [2018-11-18 12:45:26,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ab94e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:45:26, skipping insertion in model container [2018-11-18 12:45:26,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:45:26" (3/3) ... [2018-11-18 12:45:26,581 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-11-18 12:45:26,587 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:45:26,592 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:45:26,601 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:45:26,620 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:45:26,620 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:45:26,620 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:45:26,620 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:45:26,621 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:45:26,621 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:45:26,621 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:45:26,621 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:45:26,621 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:45:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 12:45:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:45:26,636 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:45:26,637 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:45:26,639 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:45:26,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:45:26,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1982603429, now seen corresponding path program 1 times [2018-11-18 12:45:26,645 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:45:26,645 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 12:45:26,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:45:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:45:26,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:45:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:45:26,887 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:45:26,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:45:26,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:45:26,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:45:26,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:45:26,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:45:26,909 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 12:45:26,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:45:26,925 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-11-18 12:45:26,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:45:26,927 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-18 12:45:26,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:45:26,934 INFO L225 Difference]: With dead ends: 76 [2018-11-18 12:45:26,935 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 12:45:26,937 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:45:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 12:45:26,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 12:45:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 12:45:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-11-18 12:45:26,967 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 20 [2018-11-18 12:45:26,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:45:26,968 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-11-18 12:45:26,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:45:26,968 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-11-18 12:45:26,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 12:45:26,969 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:45:26,969 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:45:26,969 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:45:26,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:45:26,970 INFO L82 PathProgramCache]: Analyzing trace with hash -75431839, now seen corresponding path program 1 times [2018-11-18 12:45:26,970 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:45:26,970 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 12:45:26,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:45:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:45:27,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:45:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:45:27,249 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:45:27,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:45:27,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:45:27,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:45:27,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:45:27,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:45:27,261 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand 6 states. [2018-11-18 12:45:30,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:45:30,491 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-18 12:45:30,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:45:30,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-18 12:45:30,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:45:30,495 INFO L225 Difference]: With dead ends: 52 [2018-11-18 12:45:30,495 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 12:45:30,496 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:45:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 12:45:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-18 12:45:30,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 12:45:30,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2018-11-18 12:45:30,501 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 21 [2018-11-18 12:45:30,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:45:30,501 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2018-11-18 12:45:30,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:45:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-11-18 12:45:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 12:45:30,502 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:45:30,502 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:45:30,503 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:45:30,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:45:30,503 INFO L82 PathProgramCache]: Analyzing trace with hash -406668313, now seen corresponding path program 1 times [2018-11-18 12:45:30,503 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:45:30,503 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 12:45:30,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:45:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:45:30,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:45:32,209 WARN L180 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 12:45:32,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:45:32,355 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:45:32,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:45:32,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 12:45:32,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:45:32,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:45:32,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:45:32,365 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 10 states. [2018-11-18 12:45:33,633 WARN L180 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 12:45:49,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:45:49,524 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-18 12:45:49,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:45:49,525 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-18 12:45:49,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:45:49,526 INFO L225 Difference]: With dead ends: 49 [2018-11-18 12:45:49,527 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 12:45:49,527 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 12:45:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 12:45:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-18 12:45:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 12:45:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-18 12:45:49,535 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 22 [2018-11-18 12:45:49,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:45:49,535 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-18 12:45:49,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:45:49,535 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-18 12:45:49,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:45:49,536 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:45:49,536 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:45:49,536 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:45:49,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:45:49,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1423848861, now seen corresponding path program 1 times [2018-11-18 12:45:49,537 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:45:49,537 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 12:45:49,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:45:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:45:49,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:45:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:45:50,152 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:45:50,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:45:50,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 12:45:50,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:45:50,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:45:50,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:45:50,169 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 9 states. [2018-11-18 12:45:50,574 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 12:46:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:46:02,594 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-11-18 12:46:02,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:46:02,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-18 12:46:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:46:02,596 INFO L225 Difference]: With dead ends: 47 [2018-11-18 12:46:02,596 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:46:02,597 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:46:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:46:02,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-11-18 12:46:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 12:46:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-18 12:46:02,601 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 23 [2018-11-18 12:46:02,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:46:02,602 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-18 12:46:02,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:46:02,602 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-18 12:46:02,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 12:46:02,603 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:46:02,603 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:46:02,603 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:46:02,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:46:02,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1840261923, now seen corresponding path program 1 times [2018-11-18 12:46:02,604 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:46:02,604 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 12:46:02,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:46:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:46:03,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:46:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:46:03,760 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:46:03,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:46:03,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:46:03,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:46:03,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:46:03,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:46:03,778 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-18 12:46:06,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:46:06,591 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-11-18 12:46:06,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:46:06,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-11-18 12:46:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:46:06,593 INFO L225 Difference]: With dead ends: 40 [2018-11-18 12:46:06,593 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:46:06,593 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:46:06,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:46:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:46:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:46:06,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:46:06,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 12:46:06,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:46:06,594 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:46:06,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:46:06,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:46:06,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:46:06,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:46:06,803 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-11-18 12:46:06,803 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-11-18 12:46:06,804 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-11-18 12:46:06,804 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:46:06,804 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:46:06,804 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:46:06,804 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-11-18 12:46:06,804 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-11-18 12:46:06,804 INFO L421 ceAbstractionStarter]: At program point L52-3(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))))) [2018-11-18 12:46:06,805 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-11-18 12:46:06,805 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-11-18 12:46:06,805 INFO L421 ceAbstractionStarter]: At program point L36-3(lines 36 40) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-11-18 12:46:06,805 INFO L425 ceAbstractionStarter]: For program point L36-4(lines 36 40) no Hoare annotation was computed. [2018-11-18 12:46:06,805 INFO L425 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-11-18 12:46:06,805 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-11-18 12:46:06,806 INFO L421 ceAbstractionStarter]: At program point L61-3(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-11-18 12:46:06,806 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-11-18 12:46:06,806 INFO L425 ceAbstractionStarter]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2018-11-18 12:46:06,806 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-11-18 12:46:06,806 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-11-18 12:46:06,806 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-11-18 12:46:06,806 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 12:46:06,806 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:46:06,807 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-11-18 12:46:06,808 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:46:06,808 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:46:06,808 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 113 129) the Hoare annotation is: true [2018-11-18 12:46:06,808 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 113 129) no Hoare annotation was computed. [2018-11-18 12:46:06,808 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 12:46:06,808 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2018-11-18 12:46:06,808 INFO L421 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 .cse1) .cse0)) (= main_~x~0 .cse1))))) [2018-11-18 12:46:06,809 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 123 126) no Hoare annotation was computed. [2018-11-18 12:46:06,809 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 113 129) no Hoare annotation was computed. [2018-11-18 12:46:06,809 INFO L421 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-11-18 12:46:06,809 INFO L425 ceAbstractionStarter]: For program point L120-1(line 120) no Hoare annotation was computed. [2018-11-18 12:46:06,816 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,817 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,817 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,817 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,817 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,817 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,820 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,821 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,821 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,821 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,821 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,822 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,822 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,823 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,823 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,823 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,824 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,824 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,824 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,824 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,825 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,825 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,825 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,826 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,826 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,826 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:46:06 BoogieIcfgContainer [2018-11-18 12:46:06,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:46:06,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:46:06,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:46:06,829 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:46:06,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:45:26" (3/4) ... [2018-11-18 12:46:06,832 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:46:06,837 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 12:46:06,837 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:46:06,837 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-18 12:46:06,837 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:46:06,843 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2018-11-18 12:46:06,843 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-18 12:46:06,844 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:46:06,844 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:46:06,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) [2018-11-18 12:46:06,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) [2018-11-18 12:46:06,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-11-18 12:46:06,894 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2d93013e-f824-4540-ba73-d0004ab868d3/bin-2019/utaipan/witness.graphml [2018-11-18 12:46:06,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:46:06,895 INFO L168 Benchmark]: Toolchain (without parser) took 53608.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.7 MB in the beginning and 881.7 MB in the end (delta: 66.9 MB). Peak memory consumption was 210.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:46:06,896 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-11-18 12:46:06,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:46:06,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.19 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:46:06,896 INFO L168 Benchmark]: Boogie Preprocessor took 78.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -198.7 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:46:06,897 INFO L168 Benchmark]: RCFGBuilder took 12954.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:46:06,899 INFO L168 Benchmark]: TraceAbstraction took 40251.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.6 MB in the end (delta: 209.5 MB). Peak memory consumption was 209.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:46:06,900 INFO L168 Benchmark]: Witness Printer took 65.46 ms. Allocated memory is still 1.2 GB. Free memory was 888.6 MB in the beginning and 881.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:46:06,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 233.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.19 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -198.7 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 12954.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 40251.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.6 MB in the end (delta: 209.5 MB). Peak memory consumption was 209.5 MB. Max. memory is 11.5 GB. * Witness Printer took 65.46 ms. Allocated memory is still 1.2 GB. Free memory was 888.6 MB in the beginning and 881.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant [2018-11-18 12:46:06,905 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,907 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-11-18 12:46:06,908 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,908 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) - InvariantResult [Line: 52]: Loop Invariant [2018-11-18 12:46:06,908 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,910 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:46:06,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 12:46:06,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. SAFE Result, 40.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 35.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 196 SDtfs, 104 SDslu, 705 SDs, 0 SdLazy, 241 SolverSat, 14 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 33.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 21 NumberOfFragments, 124 HoareAnnotationTreeSize, 15 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 85 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 12 QuantifiedInterpolants, 15843 SizeOfPredicates, 15 NumberOfNonLiveVariables, 454 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...