./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_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_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 2fdd6b263368afa8ce8882c7fab6c0f595a3666c ...................................................................................................................................................................................................................................................................................................................... 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_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 2fdd6b263368afa8ce8882c7fab6c0f595a3666c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:01:36,411 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:01:36,412 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:01:36,420 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:01:36,420 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:01:36,421 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:01:36,422 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:01:36,423 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:01:36,424 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:01:36,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:01:36,425 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:01:36,425 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:01:36,426 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:01:36,427 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:01:36,427 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:01:36,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:01:36,428 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:01:36,430 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:01:36,431 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:01:36,432 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:01:36,433 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:01:36,434 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:01:36,435 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:01:36,435 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:01:36,435 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:01:36,436 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:01:36,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:01:36,437 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:01:36,438 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:01:36,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:01:36,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:01:36,439 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:01:36,440 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:01:36,440 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:01:36,440 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:01:36,440 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:01:36,441 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:01:36,451 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:01:36,451 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:01:36,452 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:01:36,452 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:01:36,452 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:01:36,452 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:01:36,452 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:01:36,452 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:01:36,452 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:01:36,452 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:01:36,452 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:01:36,453 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:01:36,453 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:01:36,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:01:36,453 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:01:36,453 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:01:36,454 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:01:36,455 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:01:36,455 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:01:36,455 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:01:36,455 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:01:36,455 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:01:36,455 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:01:36,455 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:01:36,456 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:01:36,456 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:01:36,456 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:01:36,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:01:36,456 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:01:36,456 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_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2018-11-18 16:01:36,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:01:36,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:01:36,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:01:36,489 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:01:36,489 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:01:36,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-18 16:01:36,526 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/7e4a0f438/faab0cfdb957423db670d8c5962cce3a/FLAG592f0d9c9 [2018-11-18 16:01:36,844 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:01:36,844 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-18 16:01:36,850 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/7e4a0f438/faab0cfdb957423db670d8c5962cce3a/FLAG592f0d9c9 [2018-11-18 16:01:36,861 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/7e4a0f438/faab0cfdb957423db670d8c5962cce3a [2018-11-18 16:01:36,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:01:36,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:01:36,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:01:36,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:01:36,869 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:01:36,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:01:36" (1/1) ... [2018-11-18 16:01:36,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e791d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:36, skipping insertion in model container [2018-11-18 16:01:36,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:01:36" (1/1) ... [2018-11-18 16:01:36,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:01:36,899 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:01:37,029 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:01:37,032 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:01:37,052 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:01:37,067 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:01:37,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37 WrapperNode [2018-11-18 16:01:37,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:01:37,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:01:37,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:01:37,068 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:01:37,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:01:37,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:01:37,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:01:37,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:01:37,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... [2018-11-18 16:01:37,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:01:37,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:01:37,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:01:37,143 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:01:37,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 16:01:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:01:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:01:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:01:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:01:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:01:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:01:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:01:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:01:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:01:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:01:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:01:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 16:01:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 16:01:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:01:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 16:01:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 16:01:37,371 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:01:37,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:01:37 BoogieIcfgContainer [2018-11-18 16:01:37,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:01:37,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:01:37,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:01:37,375 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:01:37,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:01:36" (1/3) ... [2018-11-18 16:01:37,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feabc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:01:37, skipping insertion in model container [2018-11-18 16:01:37,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:37" (2/3) ... [2018-11-18 16:01:37,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feabc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:01:37, skipping insertion in model container [2018-11-18 16:01:37,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:01:37" (3/3) ... [2018-11-18 16:01:37,378 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-11-18 16:01:37,384 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:01:37,389 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:01:37,398 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:01:37,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:01:37,420 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:01:37,420 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:01:37,420 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:01:37,420 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:01:37,421 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:01:37,421 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:01:37,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:01:37,433 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-11-18 16:01:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 16:01:37,437 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:01:37,438 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:01:37,439 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:01:37,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:01:37,442 INFO L82 PathProgramCache]: Analyzing trace with hash 361228967, now seen corresponding path program 1 times [2018-11-18 16:01:37,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:01:37,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:01:37,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:01:37,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:01:37,479 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:01:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:01:37,532 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 16:01:37,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:01:37,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:01:37,534 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:01:37,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:01:37,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:01:37,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:01:37,547 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2018-11-18 16:01:37,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:01:37,562 INFO L93 Difference]: Finished difference Result 96 states and 137 transitions. [2018-11-18 16:01:37,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:01:37,563 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 16:01:37,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:01:37,570 INFO L225 Difference]: With dead ends: 96 [2018-11-18 16:01:37,570 INFO L226 Difference]: Without dead ends: 48 [2018-11-18 16:01:37,573 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 16:01:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-18 16:01:37,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-18 16:01:37,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-18 16:01:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-11-18 16:01:37,599 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 17 [2018-11-18 16:01:37,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:01:37,599 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-11-18 16:01:37,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:01:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-11-18 16:01:37,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 16:01:37,600 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:01:37,600 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:01:37,600 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:01:37,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:01:37,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1124442866, now seen corresponding path program 1 times [2018-11-18 16:01:37,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:01:37,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:01:37,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:01:37,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:01:37,602 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:01:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:01:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:01:37,655 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:01:37,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:01:37 BoogieIcfgContainer [2018-11-18 16:01:37,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:01:37,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:01:37,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:01:37,674 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:01:37,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:01:37" (3/4) ... [2018-11-18 16:01:37,676 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:01:37,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:01:37,677 INFO L168 Benchmark]: Toolchain (without parser) took 812.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -124.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:37,678 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:01:37,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.62 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:37,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:37,679 INFO L168 Benchmark]: Boogie Preprocessor took 24.74 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 16:01:37,679 INFO L168 Benchmark]: RCFGBuilder took 229.31 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:37,680 INFO L168 Benchmark]: TraceAbstraction took 300.48 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:37,680 INFO L168 Benchmark]: Witness Printer took 2.94 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 16:01:37,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 201.62 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.74 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. * RCFGBuilder took 229.31 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 300.48 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 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: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someUnaryFLOAToperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450949, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = -0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L20] FCALL ieee_float_shape_type gf_u; [L21] FCALL gf_u.value = (x) [L22] EXPR, FCALL gf_u.word [L22] (ix) = gf_u.word [L23] COND FALSE !(0) VAL [\old(x)=6442450948, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L24] hx = ix & 0x7fffffff VAL [\old(x)=6442450948, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] RET return x * x + x; VAL [\old(x)=6442450948, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L102] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450945, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, res=6442450945, res == -0.0f && __signbit_float(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L105] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=6442450945, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 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=52occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 16:01:39,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:01:39,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:01:39,110 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:01:39,110 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:01:39,111 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:01:39,112 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:01:39,113 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:01:39,114 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:01:39,114 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:01:39,115 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:01:39,115 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:01:39,116 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:01:39,117 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:01:39,117 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:01:39,118 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:01:39,119 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:01:39,120 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:01:39,121 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:01:39,122 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:01:39,123 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:01:39,124 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:01:39,125 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:01:39,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:01:39,126 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:01:39,126 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:01:39,127 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:01:39,127 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:01:39,128 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:01:39,129 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:01:39,129 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:01:39,129 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:01:39,129 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:01:39,130 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:01:39,130 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:01:39,131 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:01:39,131 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:01:39,142 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:01:39,142 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:01:39,143 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:01:39,143 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:01:39,143 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:01:39,143 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:01:39,143 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:01:39,143 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:01:39,143 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:01:39,144 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:01:39,144 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:01:39,144 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:01:39,144 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:01:39,144 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:01:39,145 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:01:39,145 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:01:39,145 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:01:39,145 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:01:39,145 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:01:39,145 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:01:39,145 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:01:39,146 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:01:39,146 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:01:39,146 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:01:39,146 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:01:39,146 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:01:39,146 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:01:39,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:01:39,147 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:01:39,147 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:01:39,147 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:01:39,147 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:01:39,147 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:01:39,147 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:01:39,147 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:01:39,148 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_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2018-11-18 16:01:39,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:01:39,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:01:39,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:01:39,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:01:39,189 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:01:39,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-18 16:01:39,231 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/e763825cb/906e8efca8974f3899f8d06d3695e63a/FLAG32f76386e [2018-11-18 16:01:39,630 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:01:39,631 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-18 16:01:39,637 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/e763825cb/906e8efca8974f3899f8d06d3695e63a/FLAG32f76386e [2018-11-18 16:01:39,646 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/data/e763825cb/906e8efca8974f3899f8d06d3695e63a [2018-11-18 16:01:39,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:01:39,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:01:39,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:01:39,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:01:39,652 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:01:39,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,654 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 04:01:39, skipping insertion in model container [2018-11-18 16:01:39,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:01:39,681 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:01:39,823 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:01:39,828 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:01:39,852 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:01:39,871 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:01:39,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39 WrapperNode [2018-11-18 16:01:39,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:01:39,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:01:39,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:01:39,873 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:01:39,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:01:39,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:01:39,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:01:39,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:01:39,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... [2018-11-18 16:01:39,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:01:39,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:01:39,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:01:39,923 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:01:39,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 16:01:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:01:40,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:01:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 16:01:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:01:40,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:01:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:01:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:01:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:01:40,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:01:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 16:01:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 16:01:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 16:01:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:01:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:01:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 16:01:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 16:01:40,656 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:01:40,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:01:40 BoogieIcfgContainer [2018-11-18 16:01:40,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:01:40,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:01:40,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:01:40,660 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:01:40,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:01:39" (1/3) ... [2018-11-18 16:01:40,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0c4017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:01:40, skipping insertion in model container [2018-11-18 16:01:40,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:01:39" (2/3) ... [2018-11-18 16:01:40,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0c4017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:01:40, skipping insertion in model container [2018-11-18 16:01:40,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:01:40" (3/3) ... [2018-11-18 16:01:40,661 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-11-18 16:01:40,667 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:01:40,672 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:01:40,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:01:40,698 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:01:40,698 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:01:40,698 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:01:40,699 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:01:40,699 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:01:40,699 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:01:40,699 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:01:40,699 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:01:40,699 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:01:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-11-18 16:01:40,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 16:01:40,712 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:01:40,712 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:01:40,714 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:01:40,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:01:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash 361228967, now seen corresponding path program 1 times [2018-11-18 16:01:40,719 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:01:40,719 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 16:01:40,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:01:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:01:40,826 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:01:40,837 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 16:01:40,838 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:01:40,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:01:40,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:01:40,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:01:40,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:01:40,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:01:40,863 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2018-11-18 16:01:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:01:40,880 INFO L93 Difference]: Finished difference Result 96 states and 137 transitions. [2018-11-18 16:01:40,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:01:40,881 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 16:01:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:01:40,888 INFO L225 Difference]: With dead ends: 96 [2018-11-18 16:01:40,889 INFO L226 Difference]: Without dead ends: 48 [2018-11-18 16:01:40,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 16:01:40,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-18 16:01:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-18 16:01:40,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-18 16:01:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-11-18 16:01:40,922 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 17 [2018-11-18 16:01:40,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:01:40,922 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-11-18 16:01:40,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:01:40,922 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-11-18 16:01:40,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 16:01:40,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:01:40,923 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:01:40,924 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:01:40,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:01:40,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1124442866, now seen corresponding path program 1 times [2018-11-18 16:01:40,924 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:01:40,924 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 16:01:40,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:01:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:01:41,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:01:41,162 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 16:01:41,162 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:01:41,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:01:41,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:01:41,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:01:41,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:01:41,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:01:41,172 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 7 states. [2018-11-18 16:01:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:01:42,111 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2018-11-18 16:01:42,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:01:42,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-11-18 16:01:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:01:42,114 INFO L225 Difference]: With dead ends: 69 [2018-11-18 16:01:42,114 INFO L226 Difference]: Without dead ends: 54 [2018-11-18 16:01:42,115 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:01:42,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-18 16:01:42,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2018-11-18 16:01:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-18 16:01:42,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2018-11-18 16:01:42,120 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 18 [2018-11-18 16:01:42,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:01:42,120 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2018-11-18 16:01:42,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:01:42,121 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2018-11-18 16:01:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 16:01:42,121 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:01:42,121 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:01:42,122 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:01:42,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:01:42,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1413658501, now seen corresponding path program 1 times [2018-11-18 16:01:42,122 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:01:42,122 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 16:01:42,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:01:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:01:42,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:01:42,208 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 16:01:42,208 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:01:42,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:01:42,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:01:42,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:01:42,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:01:42,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:01:42,220 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 7 states. [2018-11-18 16:01:42,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:01:42,550 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-18 16:01:42,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:01:42,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 16:01:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:01:42,552 INFO L225 Difference]: With dead ends: 55 [2018-11-18 16:01:42,552 INFO L226 Difference]: Without dead ends: 52 [2018-11-18 16:01:42,553 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 16:01:42,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-18 16:01:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-11-18 16:01:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-18 16:01:42,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2018-11-18 16:01:42,560 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 19 [2018-11-18 16:01:42,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:01:42,560 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2018-11-18 16:01:42,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:01:42,561 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2018-11-18 16:01:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 16:01:42,561 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:01:42,561 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 16:01:42,562 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:01:42,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:01:42,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1044456022, now seen corresponding path program 1 times [2018-11-18 16:01:42,562 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:01:42,562 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 16:01:42,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:01:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:01:42,735 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:01:42,806 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 16:01:42,807 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:01:42,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:01:42,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:01:42,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:01:42,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:01:42,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:01:42,816 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand 7 states. [2018-11-18 16:01:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:01:43,312 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2018-11-18 16:01:43,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:01:43,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 16:01:43,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:01:43,313 INFO L225 Difference]: With dead ends: 69 [2018-11-18 16:01:43,313 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 16:01:43,314 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:01:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 16:01:43,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-18 16:01:43,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 16:01:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-11-18 16:01:43,316 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 20 [2018-11-18 16:01:43,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:01:43,316 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-11-18 16:01:43,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:01:43,316 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-11-18 16:01:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 16:01:43,316 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:01:43,317 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] [2018-11-18 16:01:43,317 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:01:43,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:01:43,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1008249554, now seen corresponding path program 1 times [2018-11-18 16:01:43,317 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:01:43,317 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/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 16:01:43,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:01:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:01:43,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:01:43,483 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 16:01:43,483 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:01:43,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:01:43,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 16:01:43,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 16:01:43,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 16:01:43,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-18 16:01:43,491 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 12 states. [2018-11-18 16:01:43,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:01:43,782 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-18 16:01:43,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 16:01:43,782 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-11-18 16:01:43,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:01:43,783 INFO L225 Difference]: With dead ends: 28 [2018-11-18 16:01:43,783 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:01:43,783 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-18 16:01:43,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:01:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:01:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:01:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:01:43,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-18 16:01:43,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:01:43,784 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:01:43,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 16:01:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:01:43,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:01:43,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:01:43,890 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:01:43,890 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:01:43,890 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:01:43,890 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:01:43,890 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:01:43,890 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:01:43,890 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:01:43,890 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 93 111) the Hoare annotation is: true [2018-11-18 16:01:43,890 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 93 111) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 93 111) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L421 ceAbstractionStarter]: At program point L105-1(line 105) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= main_~res~0 .cse0) |main_#t~short9| (= main_~x~0 .cse0))) [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L421 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point L105-4(lines 105 108) no Hoare annotation was computed. [2018-11-18 16:01:43,891 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 81 91) no Hoare annotation was computed. [2018-11-18 16:01:43,892 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-11-18 16:01:43,892 INFO L421 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-18 16:01:43,892 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 81 91) the Hoare annotation is: true [2018-11-18 16:01:43,892 INFO L425 ceAbstractionStarter]: For program point L84-4(lines 84 88) no Hoare annotation was computed. [2018-11-18 16:01:43,892 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 81 91) no Hoare annotation was computed. [2018-11-18 16:01:43,892 INFO L425 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-18 16:01:43,892 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-18 16:01:43,892 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-18 16:01:43,893 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-18 16:01:43,893 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-18 16:01:43,893 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-11-18 16:01:43,893 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-11-18 16:01:43,893 INFO L425 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-18 16:01:43,893 INFO L421 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-11-18 16:01:43,893 INFO L425 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-11-18 16:01:43,893 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-11-18 16:01:43,894 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-11-18 16:01:43,894 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-18 16:01:43,894 INFO L421 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-11-18 16:01:43,894 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-11-18 16:01:43,894 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-18 16:01:43,894 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-18 16:01:43,894 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-18 16:01:43,895 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-18 16:01:43,896 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-18 16:01:43,903 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,904 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,904 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,904 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,904 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,911 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,913 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:01:43 BoogieIcfgContainer [2018-11-18 16:01:43,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:01:43,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:01:43,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:01:43,915 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:01:43,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:01:40" (3/4) ... [2018-11-18 16:01:43,917 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:01:43,921 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:01:43,922 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:01:43,922 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 16:01:43,922 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 16:01:43,926 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-18 16:01:43,926 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 16:01:43,926 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 16:01:43,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 16:01:43,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 16:01:43,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-18 16:01:43,944 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-18 16:01:43,944 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-18 16:01:43,966 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e60136e8-4f6c-474d-9785-3a0fa9826c51/bin-2019/utaipan/witness.graphml [2018-11-18 16:01:43,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:01:43,967 INFO L168 Benchmark]: Toolchain (without parser) took 4319.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 948.7 MB in the beginning and 919.5 MB in the end (delta: 29.2 MB). Peak memory consumption was 190.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:43,968 INFO L168 Benchmark]: CDTParser took 0.15 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 16:01:43,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.86 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 16:01:43,968 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.81 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 16:01:43,969 INFO L168 Benchmark]: Boogie Preprocessor took 29.99 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 16:01:43,969 INFO L168 Benchmark]: RCFGBuilder took 734.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:43,969 INFO L168 Benchmark]: TraceAbstraction took 3256.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.1 MB in the end (delta: 197.4 MB). Peak memory consumption was 197.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:43,969 INFO L168 Benchmark]: Witness Printer took 52.14 ms. Allocated memory is still 1.2 GB. Free memory was 926.1 MB in the beginning and 919.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:43,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 222.86 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 19.81 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 29.99 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. * RCFGBuilder took 734.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3256.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.1 MB in the end (delta: 197.4 MB). Peak memory consumption was 197.4 MB. Max. memory is 11.5 GB. * Witness Printer took 52.14 ms. Allocated memory is still 1.2 GB. Free memory was 926.1 MB in the beginning and 919.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 36]: Loop Invariant [2018-11-18 16:01:43,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 50]: Loop Invariant [2018-11-18 16:01:43,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 73]: Loop Invariant [2018-11-18 16:01:43,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 16:01:43,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 221 SDtfs, 276 SDslu, 630 SDs, 0 SdLazy, 234 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 19 PreInvPairs, 26 NumberOfFragments, 137 HoareAnnotationTreeSize, 19 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 10 QuantifiedInterpolants, 8787 SizeOfPredicates, 17 NumberOfNonLiveVariables, 287 ConjunctsInSsa, 34 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...