./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 0.1.23-1dbac8b [2018-11-10 10:47:51,051 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:47:51,052 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:47:51,058 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:47:51,058 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:47:51,059 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:47:51,060 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:47:51,061 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:47:51,062 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:47:51,062 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:47:51,063 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:47:51,063 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:47:51,064 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:47:51,064 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:47:51,065 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:47:51,065 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:47:51,066 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:47:51,067 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:47:51,068 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:47:51,069 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:47:51,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:47:51,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:47:51,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:47:51,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:47:51,073 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:47:51,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:47:51,076 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:47:51,077 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:47:51,077 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:47:51,078 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:47:51,078 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:47:51,078 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:47:51,078 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:47:51,078 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:47:51,079 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:47:51,079 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:47:51,079 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 10:47:51,087 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:47:51,087 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:47:51,087 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:47:51,087 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:47:51,088 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:47:51,088 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:47:51,088 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 10:47:51,088 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:47:51,088 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 10:47:51,088 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 10:47:51,088 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:47:51,089 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:47:51,089 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:47:51,089 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:47:51,089 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:47:51,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:47:51,090 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:47:51,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:47:51,090 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:47:51,090 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:47:51,090 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:47:51,090 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:47:51,090 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:47:51,090 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:47:51,091 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:47:51,091 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:47:51,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:47:51,091 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:47:51,091 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:47:51,091 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:47:51,091 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 10:47:51,092 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:47:51,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:47:51,092 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 10:47:51,092 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_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:51,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:47:51,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:47:51,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:47:51,128 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:47:51,128 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:47:51,128 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-10 10:47:51,165 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/1cb96f39c/20b8e35bb718428fb0c3ad3691e76c5e/FLAG9d523481e [2018-11-10 10:47:51,573 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:47:51,573 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-10 10:47:51,578 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/1cb96f39c/20b8e35bb718428fb0c3ad3691e76c5e/FLAG9d523481e [2018-11-10 10:47:51,587 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/1cb96f39c/20b8e35bb718428fb0c3ad3691e76c5e [2018-11-10 10:47:51,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:47:51,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:47:51,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:47:51,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:47:51,594 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:47:51,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d14c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51, skipping insertion in model container [2018-11-10 10:47:51,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:47:51,618 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:47:51,723 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:47:51,725 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:47:51,744 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:47:51,756 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:47:51,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51 WrapperNode [2018-11-10 10:47:51,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:47:51,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:47:51,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:47:51,757 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:47:51,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:47:51,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:47:51,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:47:51,784 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:47:51,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... [2018-11-10 10:47:51,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:47:51,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:47:51,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:47:51,842 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:47:51,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:47:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:47:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:47:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:47:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:47:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:47:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 10:47:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 10:47:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 10:47:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 10:47:52,134 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:47:52,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:47:52 BoogieIcfgContainer [2018-11-10 10:47:52,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:47:52,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:47:52,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:47:52,137 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:47:52,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:47:51" (1/3) ... [2018-11-10 10:47:52,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1bcb48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:52, skipping insertion in model container [2018-11-10 10:47:52,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:51" (2/3) ... [2018-11-10 10:47:52,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1bcb48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:52, skipping insertion in model container [2018-11-10 10:47:52,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:47:52" (3/3) ... [2018-11-10 10:47:52,139 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-11-10 10:47:52,145 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:47:52,149 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:47:52,161 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:47:52,179 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:47:52,180 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:47:52,180 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:47:52,180 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:47:52,180 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:47:52,180 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:47:52,180 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:47:52,180 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:47:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-11-10 10:47:52,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 10:47:52,194 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:47:52,194 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:47:52,195 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:47:52,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:47:52,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1528439625, now seen corresponding path program 1 times [2018-11-10 10:47:52,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:47:52,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:47:52,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:47:52,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:47:52,230 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:47:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:47:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:47:52,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:47:52,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:47:52,281 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:47:52,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:47:52,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:47:52,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:47:52,297 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2018-11-10 10:47:52,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:47:52,312 INFO L93 Difference]: Finished difference Result 96 states and 137 transitions. [2018-11-10 10:47:52,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:47:52,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 10:47:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:47:52,318 INFO L225 Difference]: With dead ends: 96 [2018-11-10 10:47:52,318 INFO L226 Difference]: Without dead ends: 48 [2018-11-10 10:47:52,320 INFO L605 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 [2018-11-10 10:47:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-10 10:47:52,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-10 10:47:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-10 10:47:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-11-10 10:47:52,344 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 17 [2018-11-10 10:47:52,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:47:52,344 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-11-10 10:47:52,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:47:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-11-10 10:47:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 10:47:52,345 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:47:52,345 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:47:52,345 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:47:52,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:47:52,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2078775054, now seen corresponding path program 1 times [2018-11-10 10:47:52,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:47:52,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:47:52,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:47:52,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:47:52,347 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:47:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:47:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:47:52,409 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:47:52,418 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,419 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,419 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,419 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,420 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,420 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,420 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,420 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,420 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,421 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,421 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,421 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,421 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,421 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,422 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,422 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,422 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,422 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,422 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:47:52,422 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:47:52,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:47:52 BoogieIcfgContainer [2018-11-10 10:47:52,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:47:52,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:47:52,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:47:52,434 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:47:52,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:47:52" (3/4) ... [2018-11-10 10:47:52,436 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 10:47:52,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:47:52,437 INFO L168 Benchmark]: Toolchain (without parser) took 847.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -106.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:52,438 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:47:52,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.26 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 945.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:52,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:47:52,439 INFO L168 Benchmark]: Boogie Preprocessor took 57.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:52,440 INFO L168 Benchmark]: RCFGBuilder took 293.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:52,440 INFO L168 Benchmark]: TraceAbstraction took 297.93 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: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:52,441 INFO L168 Benchmark]: Witness Printer took 3.09 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. [2018-11-10 10:47:52,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 165.26 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 945.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 293.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 297.93 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: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * 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)=11, \old(tiny_sqrt)=7, 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 [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 [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L20] CALL ieee_float_shape_type gf_u; [L20] RET ieee_float_shape_type gf_u; [L21] CALL gf_u.value = (x) [L21] RET gf_u.value = (x) [L22] CALL, EXPR gf_u.word [L22] RET, EXPR gf_u.word [L22] (ix) = gf_u.word [L22] RET (ix) = gf_u.word [L23] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L24] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] RET return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=5, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, res=5, res == -0.0f && __signbit_float(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000, x=8] [L105] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=5, tiny_sqrt=1/1000000000000000000000000000000, x=8] - 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 0.1.23-1dbac8b [2018-11-10 10:47:53,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:47:53,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:47:53,836 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:47:53,836 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:47:53,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:47:53,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:47:53,838 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:47:53,839 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:47:53,840 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:47:53,841 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:47:53,841 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:47:53,841 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:47:53,842 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:47:53,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:47:53,843 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:47:53,844 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:47:53,845 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:47:53,846 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:47:53,848 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:47:53,848 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:47:53,849 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:47:53,851 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:47:53,851 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:47:53,851 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:47:53,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:47:53,852 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:47:53,853 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:47:53,853 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:47:53,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:47:53,854 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:47:53,855 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:47:53,855 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:47:53,855 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:47:53,856 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:47:53,856 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:47:53,856 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 10:47:53,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:47:53,867 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:47:53,867 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:47:53,867 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:47:53,868 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:47:53,868 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:47:53,868 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:47:53,868 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:47:53,868 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:47:53,868 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:47:53,869 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:47:53,869 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:47:53,870 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 10:47:53,870 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 10:47:53,870 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_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:53,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:47:53,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:47:53,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:47:53,909 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:47:53,909 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:47:53,910 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-10 10:47:53,944 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/240c2e3ea/8c7646c9f4d744e394111b1856659f40/FLAG817045f52 [2018-11-10 10:47:54,342 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:47:54,343 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-11-10 10:47:54,347 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/240c2e3ea/8c7646c9f4d744e394111b1856659f40/FLAG817045f52 [2018-11-10 10:47:54,356 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/data/240c2e3ea/8c7646c9f4d744e394111b1856659f40 [2018-11-10 10:47:54,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:47:54,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:47:54,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:47:54,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:47:54,362 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:47:54,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f8d760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54, skipping insertion in model container [2018-11-10 10:47:54,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:47:54,385 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:47:54,502 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:47:54,507 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:47:54,532 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:47:54,548 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:47:54,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54 WrapperNode [2018-11-10 10:47:54,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:47:54,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:47:54,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:47:54,549 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:47:54,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:47:54,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:47:54,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:47:54,582 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:47:54,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... [2018-11-10 10:47:54,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:47:54,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:47:54,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:47:54,614 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:47:54,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:47:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:47:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:47:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:47:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:47:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:47:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 10:47:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 10:47:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 10:47:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 10:47:54,877 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:47:55,269 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:47:55,275 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:47:55,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:47:55 BoogieIcfgContainer [2018-11-10 10:47:55,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:47:55,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:47:55,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:47:55,278 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:47:55,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:47:54" (1/3) ... [2018-11-10 10:47:55,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b88c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:55, skipping insertion in model container [2018-11-10 10:47:55,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:54" (2/3) ... [2018-11-10 10:47:55,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b88c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:55, skipping insertion in model container [2018-11-10 10:47:55,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:47:55" (3/3) ... [2018-11-10 10:47:55,280 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-11-10 10:47:55,286 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:47:55,290 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:47:55,298 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:47:55,315 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:47:55,315 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:47:55,315 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:47:55,316 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:47:55,316 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:47:55,316 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:47:55,316 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:47:55,316 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:47:55,316 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:47:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-11-10 10:47:55,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 10:47:55,331 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:47:55,331 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:47:55,333 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:47:55,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:47:55,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1528439625, now seen corresponding path program 1 times [2018-11-10 10:47:55,339 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:47:55,339 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:55,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:47:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:47:55,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:47:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:47:55,465 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:47:55,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:47:55,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:47:55,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:47:55,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:47:55,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:47:55,486 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2018-11-10 10:47:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:47:55,502 INFO L93 Difference]: Finished difference Result 96 states and 137 transitions. [2018-11-10 10:47:55,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:47:55,503 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 10:47:55,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:47:55,509 INFO L225 Difference]: With dead ends: 96 [2018-11-10 10:47:55,509 INFO L226 Difference]: Without dead ends: 48 [2018-11-10 10:47:55,511 INFO L605 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 [2018-11-10 10:47:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-10 10:47:55,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-10 10:47:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-10 10:47:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-11-10 10:47:55,536 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 17 [2018-11-10 10:47:55,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:47:55,536 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-11-10 10:47:55,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:47:55,536 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-11-10 10:47:55,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 10:47:55,537 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:47:55,537 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:47:55,537 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:47:55,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:47:55,537 INFO L82 PathProgramCache]: Analyzing trace with hash -2078775054, now seen corresponding path program 1 times [2018-11-10 10:47:55,538 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:47:55,538 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:55,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:47:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:47:55,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:47:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:47:55,743 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:47:55,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:47:55,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:47:55,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:47:55,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:47:55,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:47:55,754 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 7 states. [2018-11-10 10:47:56,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:47:56,465 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2018-11-10 10:47:56,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 10:47:56,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-11-10 10:47:56,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:47:56,468 INFO L225 Difference]: With dead ends: 69 [2018-11-10 10:47:56,468 INFO L226 Difference]: Without dead ends: 54 [2018-11-10 10:47:56,469 INFO L605 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 [2018-11-10 10:47:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-10 10:47:56,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2018-11-10 10:47:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-10 10:47:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2018-11-10 10:47:56,476 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 18 [2018-11-10 10:47:56,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:47:56,476 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2018-11-10 10:47:56,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:47:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2018-11-10 10:47:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 10:47:56,477 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:47:56,477 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:47:56,477 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:47:56,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:47:56,477 INFO L82 PathProgramCache]: Analyzing trace with hash 440084373, now seen corresponding path program 1 times [2018-11-10 10:47:56,478 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:47:56,478 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:56,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:47:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:47:56,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:47:56,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:47:56,559 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:47:56,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:47:56,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:47:56,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:47:56,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:47:56,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:47:56,566 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 7 states. [2018-11-10 10:47:57,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:47:57,024 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-10 10:47:57,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 10:47:57,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 10:47:57,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:47:57,026 INFO L225 Difference]: With dead ends: 55 [2018-11-10 10:47:57,026 INFO L226 Difference]: Without dead ends: 52 [2018-11-10 10:47:57,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-10 10:47:57,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-10 10:47:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-11-10 10:47:57,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-10 10:47:57,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2018-11-10 10:47:57,033 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 19 [2018-11-10 10:47:57,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:47:57,034 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2018-11-10 10:47:57,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:47:57,034 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2018-11-10 10:47:57,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 10:47:57,034 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:47:57,035 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] [2018-11-10 10:47:57,035 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:47:57,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:47:57,035 INFO L82 PathProgramCache]: Analyzing trace with hash 470362710, now seen corresponding path program 1 times [2018-11-10 10:47:57,035 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:47:57,036 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:57,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:47:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:47:57,216 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:47:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:47:57,277 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:47:57,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:47:57,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:47:57,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:47:57,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:47:57,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:47:57,287 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand 7 states. [2018-11-10 10:47:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:47:57,841 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2018-11-10 10:47:57,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 10:47:57,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-10 10:47:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:47:57,842 INFO L225 Difference]: With dead ends: 69 [2018-11-10 10:47:57,843 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 10:47:57,843 INFO L605 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 [2018-11-10 10:47:57,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 10:47:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-10 10:47:57,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 10:47:57,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-11-10 10:47:57,845 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 20 [2018-11-10 10:47:57,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:47:57,845 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-11-10 10:47:57,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:47:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-11-10 10:47:57,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 10:47:57,846 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:47:57,846 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] [2018-11-10 10:47:57,846 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:47:57,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:47:57,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1816024880, now seen corresponding path program 1 times [2018-11-10 10:47:57,847 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:47:57,847 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/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 [2018-11-10 10:47:57,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:47:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:47:57,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:47:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:47:58,055 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:47:58,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:47:58,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-10 10:47:58,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 10:47:58,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 10:47:58,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-10 10:47:58,068 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 12 states. [2018-11-10 10:47:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:47:58,362 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-10 10:47:58,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 10:47:58,362 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-11-10 10:47:58,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:47:58,363 INFO L225 Difference]: With dead ends: 28 [2018-11-10 10:47:58,363 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 10:47:58,363 INFO L605 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 [2018-11-10 10:47:58,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 10:47:58,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 10:47:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 10:47:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 10:47:58,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-10 10:47:58,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:47:58,364 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 10:47:58,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 10:47:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 10:47:58,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 10:47:58,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 10:47:58,494 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:47:58,494 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:47:58,494 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:47:58,494 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:47:58,495 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 10:47:58,495 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:47:58,495 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:47:58,495 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 93 111) the Hoare annotation is: true [2018-11-10 10:47:58,495 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-11-10 10:47:58,495 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 93 111) no Hoare annotation was computed. [2018-11-10 10:47:58,495 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 93 111) no Hoare annotation was computed. [2018-11-10 10:47:58,495 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-10 10:47:58,496 INFO L425 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-11-10 10:47:58,496 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))) [2018-11-10 10:47:58,496 INFO L425 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-11-10 10:47:58,496 INFO L421 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-11-10 10:47:58,496 INFO L425 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-11-10 10:47:58,496 INFO L425 ceAbstractionStarter]: For program point L105-4(lines 105 108) no Hoare annotation was computed. [2018-11-10 10:47:58,496 INFO L425 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-10 10:47:58,496 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-10 10:47:58,497 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-10 10:47:58,497 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-10 10:47:58,497 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-10 10:47:58,497 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-11-10 10:47:58,497 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-11-10 10:47:58,497 INFO L425 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-10 10:47:58,497 INFO L421 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ 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)) [2018-11-10 10:47:58,497 INFO L425 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-11-10 10:47:58,497 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-10 10:47:58,498 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 __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ 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|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-10 10:47:58,498 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-10 10:47:58,498 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ 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)) [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 81 91) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L421 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-10 10:47:58,499 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 81 91) the Hoare annotation is: true [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point L84-4(lines 84 88) no Hoare annotation was computed. [2018-11-10 10:47:58,499 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 81 91) no Hoare annotation was computed. [2018-11-10 10:47:58,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,507 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,508 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,508 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,508 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,508 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,508 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,508 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,509 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,509 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,509 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,510 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,510 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,510 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,510 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,510 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,511 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,512 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,512 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,512 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,512 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,512 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,514 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,514 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,514 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,514 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,515 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,515 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,515 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,515 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,517 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,517 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:47:58 BoogieIcfgContainer [2018-11-10 10:47:58,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:47:58,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:47:58,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:47:58,519 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:47:58,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:47:55" (3/4) ... [2018-11-10 10:47:58,522 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 10:47:58,526 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 10:47:58,526 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 10:47:58,526 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-10 10:47:58,526 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 10:47:58,531 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2018-11-10 10:47:58,531 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 10:47:58,531 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 10:47:58,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 10:47:58,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 10:47:58,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 [2018-11-10 10:47:58,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 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 [2018-11-10 10:47:58,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 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 [2018-11-10 10:47:58,575 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2e0a3c7e-e4db-41b3-864a-a41f25fedb4f/bin-2019/utaipan/witness.graphml [2018-11-10 10:47:58,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:47:58,576 INFO L168 Benchmark]: Toolchain (without parser) took 4216.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 949.7 MB in the beginning and 888.8 MB in the end (delta: 60.9 MB). Peak memory consumption was 202.0 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:58,577 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-11-10 10:47:58,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:58,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:47:58,578 INFO L168 Benchmark]: Boogie Preprocessor took 31.84 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 928.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:58,578 INFO L168 Benchmark]: RCFGBuilder took 661.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 928.2 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:58,578 INFO L168 Benchmark]: TraceAbstraction took 3242.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 895.5 MB in the end (delta: 199.8 MB). Peak memory consumption was 199.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:58,579 INFO L168 Benchmark]: Witness Printer took 56.29 ms. Allocated memory is still 1.2 GB. Free memory was 895.5 MB in the beginning and 888.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:47:58,580 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 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 33.02 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.84 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 928.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 661.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 928.2 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3242.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 895.5 MB in the end (delta: 199.8 MB). Peak memory consumption was 199.8 MB. Max. memory is 11.5 GB. * Witness Printer took 56.29 ms. Allocated memory is still 1.2 GB. Free memory was 895.5 MB in the beginning and 888.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 [2018-11-10 10:47:58,585 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,585 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,585 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,585 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,585 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,585 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,586 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,586 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,586 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,586 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,586 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,587 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,587 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,587 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,587 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,587 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(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 - InvariantResult [Line: 50]: Loop Invariant [2018-11-10 10:47:58,588 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,588 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,588 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,588 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,588 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,588 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,589 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,589 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,589 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,589 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,589 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,590 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,590 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,590 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,590 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,590 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(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 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 - InvariantResult [Line: 73]: Loop Invariant [2018-11-10 10:47:58,591 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,591 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,591 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,591 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,591 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,591 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,592 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,592 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,592 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,592 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,592 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:47:58,593 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(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 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 - 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, 3.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 221 SDtfs, 276 SDslu, 630 SDs, 0 SdLazy, 234 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s 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, 31 NumberOfNonLiveVariables, 372 ConjunctsInSsa, 45 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...