./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 03f3c06db3ef41593c24334f9583c5e77016ee88 ............................................................................................................................................................................................................................................................................................................................................... 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_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 03f3c06db3ef41593c24334f9583c5e77016ee88 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 21:04:58,017 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 21:04:58,018 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 21:04:58,024 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 21:04:58,024 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 21:04:58,024 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 21:04:58,025 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 21:04:58,026 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 21:04:58,027 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 21:04:58,027 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 21:04:58,028 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 21:04:58,028 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 21:04:58,029 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 21:04:58,029 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 21:04:58,030 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 21:04:58,030 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 21:04:58,031 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 21:04:58,031 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 21:04:58,032 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 21:04:58,033 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 21:04:58,034 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 21:04:58,035 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 21:04:58,036 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 21:04:58,036 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 21:04:58,036 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 21:04:58,037 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 21:04:58,037 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 21:04:58,038 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 21:04:58,038 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 21:04:58,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 21:04:58,039 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 21:04:58,039 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 21:04:58,039 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 21:04:58,039 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 21:04:58,040 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 21:04:58,040 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 21:04:58,041 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 21:04:58,048 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 21:04:58,048 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 21:04:58,048 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 21:04:58,049 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 21:04:58,049 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 21:04:58,049 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 21:04:58,049 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 21:04:58,049 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 21:04:58,049 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 21:04:58,049 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 21:04:58,049 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 21:04:58,050 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 21:04:58,050 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 21:04:58,050 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 21:04:58,050 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 21:04:58,050 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 21:04:58,051 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 21:04:58,051 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 21:04:58,051 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 21:04:58,051 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 21:04:58,051 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 21:04:58,051 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 21:04:58,051 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 21:04:58,052 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 21:04:58,052 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 21:04:58,052 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 21:04:58,052 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 21:04:58,052 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 21:04:58,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:04:58,052 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 21:04:58,052 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 21:04:58,053 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 21:04:58,053 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 21:04:58,053 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 21:04:58,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 21:04:58,053 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 21:04:58,053 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_3483cd84-7958-450f-91b5-1744a6026e81/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-12-08 21:04:58,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 21:04:58,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 21:04:58,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 21:04:58,080 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 21:04:58,080 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 21:04:58,081 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-08 21:04:58,115 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/c9e90015f/f0433ef4889e42fe8d2b40993a150609/FLAG244034943 [2018-12-08 21:04:58,539 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 21:04:58,539 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-08 21:04:58,543 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/c9e90015f/f0433ef4889e42fe8d2b40993a150609/FLAG244034943 [2018-12-08 21:04:58,551 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/c9e90015f/f0433ef4889e42fe8d2b40993a150609 [2018-12-08 21:04:58,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 21:04:58,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 21:04:58,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 21:04:58,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 21:04:58,556 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 21:04:58,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c93d57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58, skipping insertion in model container [2018-12-08 21:04:58,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 21:04:58,576 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 21:04:58,682 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:04:58,686 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 21:04:58,707 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:04:58,749 INFO L195 MainTranslator]: Completed translation [2018-12-08 21:04:58,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58 WrapperNode [2018-12-08 21:04:58,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 21:04:58,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 21:04:58,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 21:04:58,750 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 21:04:58,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 21:04:58,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 21:04:58,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 21:04:58,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 21:04:58,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... [2018-12-08 21:04:58,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 21:04:58,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 21:04:58,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 21:04:58,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 21:04:58,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 [2018-12-08 21:04:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-08 21:04:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-08 21:04:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 21:04:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 21:04:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 21:04:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 21:04:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 21:04:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 21:04:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 21:04:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 21:04:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 21:04:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 21:04:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 21:04:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-08 21:04:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-08 21:04:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-08 21:04:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 21:04:59,002 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 21:04:59,002 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-08 21:04:59,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:04:59 BoogieIcfgContainer [2018-12-08 21:04:59,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 21:04:59,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 21:04:59,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 21:04:59,005 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 21:04:59,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:04:58" (1/3) ... [2018-12-08 21:04:59,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5338fbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:04:59, skipping insertion in model container [2018-12-08 21:04:59,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:04:58" (2/3) ... [2018-12-08 21:04:59,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5338fbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:04:59, skipping insertion in model container [2018-12-08 21:04:59,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:04:59" (3/3) ... [2018-12-08 21:04:59,007 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-12-08 21:04:59,012 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 21:04:59,018 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 21:04:59,026 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 21:04:59,044 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 21:04:59,044 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 21:04:59,044 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 21:04:59,044 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 21:04:59,044 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 21:04:59,044 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 21:04:59,044 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 21:04:59,044 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 21:04:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-08 21:04:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 21:04:59,057 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:04:59,058 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:04:59,059 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:04:59,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:04:59,062 INFO L82 PathProgramCache]: Analyzing trace with hash -282242941, now seen corresponding path program 1 times [2018-12-08 21:04:59,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:04:59,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:04:59,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:04:59,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:04:59,091 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:04:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:04:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:04:59,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:04:59,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 21:04:59,154 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:04:59,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 21:04:59,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 21:04:59,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 21:04:59,165 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-08 21:04:59,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:04:59,179 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-12-08 21:04:59,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 21:04:59,180 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-08 21:04:59,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:04:59,185 INFO L225 Difference]: With dead ends: 100 [2018-12-08 21:04:59,185 INFO L226 Difference]: Without dead ends: 50 [2018-12-08 21:04:59,187 INFO L631 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 [2018-12-08 21:04:59,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-08 21:04:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-08 21:04:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-08 21:04:59,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-08 21:04:59,210 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-12-08 21:04:59,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:04:59,210 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-08 21:04:59,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 21:04:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-08 21:04:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 21:04:59,211 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:04:59,211 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:04:59,211 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:04:59,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:04:59,211 INFO L82 PathProgramCache]: Analyzing trace with hash 947168922, now seen corresponding path program 1 times [2018-12-08 21:04:59,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:04:59,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:04:59,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:04:59,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:04:59,212 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:04:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 21:04:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 21:04:59,267 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 21:04:59,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:04:59 BoogieIcfgContainer [2018-12-08 21:04:59,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 21:04:59,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 21:04:59,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 21:04:59,291 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 21:04:59,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:04:59" (3/4) ... [2018-12-08 21:04:59,293 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 21:04:59,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 21:04:59,294 INFO L168 Benchmark]: Toolchain (without parser) took 740.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -69.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2018-12-08 21:04:59,295 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:04:59,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -136.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-12-08 21:04:59,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 21:04:59,296 INFO L168 Benchmark]: Boogie Preprocessor took 21.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:04:59,296 INFO L168 Benchmark]: RCFGBuilder took 214.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-08 21:04:59,296 INFO L168 Benchmark]: TraceAbstraction took 287.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-08 21:04:59,296 INFO L168 Benchmark]: Witness Printer took 2.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:04:59,298 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -136.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 214.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 287.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 131]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 130, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(halF_exp)=19, \old(halF_exp)=31, \old(huge_exp)=13, \old(invln2_exp)=15, \old(ln2HI_exp)=23, \old(ln2HI_exp)=9, \old(ln2LO_exp)=25, \old(ln2LO_exp)=30, \old(one_exp)=32, \old(P1_exp)=18, \old(P2_exp)=21, \old(P3_exp)=27, \old(P4_exp)=29, \old(P5_exp)=28, \old(twom100_exp)=10, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L126] float x = -1.0f / 0.0f; VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L127] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L34] float y, hi, lo, c, t; [L35] __int32_t k = 0, xsb, sx; [L36] __uint32_t hx; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (sx) = gf_u.word [L43] xsb = (sx >> 31) & 1 [L44] hx = sx & 0x7fffffff VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L46] COND TRUE ((hx) > 0x7f800000L) [L47] return x + x; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L127] RET, EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=14, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L127] float res = __ieee754_expf(x); [L130] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=14, res == 0.0f && __signbit_float(res) == 0=0, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L130] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L131] __VERIFIER_error() VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=14, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 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=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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 0.1.23-635dfa2 [2018-12-08 21:05:00,614 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 21:05:00,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 21:05:00,621 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 21:05:00,621 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 21:05:00,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 21:05:00,622 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 21:05:00,623 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 21:05:00,624 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 21:05:00,624 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 21:05:00,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 21:05:00,625 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 21:05:00,625 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 21:05:00,626 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 21:05:00,626 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 21:05:00,626 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 21:05:00,627 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 21:05:00,628 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 21:05:00,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 21:05:00,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 21:05:00,631 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 21:05:00,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 21:05:00,633 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 21:05:00,633 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 21:05:00,633 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 21:05:00,634 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 21:05:00,634 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 21:05:00,635 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 21:05:00,635 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 21:05:00,636 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 21:05:00,636 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 21:05:00,636 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 21:05:00,637 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 21:05:00,637 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 21:05:00,637 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 21:05:00,638 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 21:05:00,638 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 21:05:00,648 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 21:05:00,648 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 21:05:00,649 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 21:05:00,649 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 21:05:00,649 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 21:05:00,649 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 21:05:00,650 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 21:05:00,650 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 21:05:00,650 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 21:05:00,650 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 21:05:00,651 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 21:05:00,651 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 21:05:00,651 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 21:05:00,651 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 21:05:00,651 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 21:05:00,651 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 21:05:00,652 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 21:05:00,652 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 21:05:00,652 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 21:05:00,652 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 21:05:00,652 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 21:05:00,652 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 21:05:00,652 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 21:05:00,653 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 21:05:00,653 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 21:05:00,653 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 21:05:00,653 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 21:05:00,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:05:00,653 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 21:05:00,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 21:05:00,654 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 21:05:00,654 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 21:05:00,654 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 21:05:00,654 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 21:05:00,654 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 21:05:00,654 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_3483cd84-7958-450f-91b5-1744a6026e81/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-12-08 21:05:00,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 21:05:00,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 21:05:00,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 21:05:00,692 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 21:05:00,693 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 21:05:00,693 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-08 21:05:00,737 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/6f5785fc1/0f7d9db3e8f04d72b6f3f1e4116b06c0/FLAG1ace0fe44 [2018-12-08 21:05:01,120 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 21:05:01,120 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-08 21:05:01,124 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/6f5785fc1/0f7d9db3e8f04d72b6f3f1e4116b06c0/FLAG1ace0fe44 [2018-12-08 21:05:01,132 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/data/6f5785fc1/0f7d9db3e8f04d72b6f3f1e4116b06c0 [2018-12-08 21:05:01,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 21:05:01,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 21:05:01,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 21:05:01,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 21:05:01,137 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 21:05:01,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b97ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01, skipping insertion in model container [2018-12-08 21:05:01,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 21:05:01,156 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 21:05:01,263 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:05:01,268 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 21:05:01,293 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:05:01,309 INFO L195 MainTranslator]: Completed translation [2018-12-08 21:05:01,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01 WrapperNode [2018-12-08 21:05:01,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 21:05:01,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 21:05:01,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 21:05:01,310 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 21:05:01,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 21:05:01,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 21:05:01,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 21:05:01,355 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 21:05:01,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... [2018-12-08 21:05:01,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 21:05:01,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 21:05:01,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 21:05:01,381 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 21:05:01,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 [2018-12-08 21:05:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-08 21:05:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-08 21:05:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-08 21:05:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 21:05:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 21:05:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-08 21:05:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 21:05:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 21:05:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 21:05:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 21:05:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 21:05:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 21:05:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-08 21:05:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-08 21:05:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-08 21:05:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 21:05:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 21:05:01,509 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 21:05:07,625 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 21:05:07,647 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 21:05:07,727 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 21:05:07,748 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 21:05:07,754 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 21:05:07,754 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-08 21:05:07,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:05:07 BoogieIcfgContainer [2018-12-08 21:05:07,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 21:05:07,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 21:05:07,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 21:05:07,757 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 21:05:07,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:05:01" (1/3) ... [2018-12-08 21:05:07,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12302d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:05:07, skipping insertion in model container [2018-12-08 21:05:07,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:01" (2/3) ... [2018-12-08 21:05:07,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12302d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:05:07, skipping insertion in model container [2018-12-08 21:05:07,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:05:07" (3/3) ... [2018-12-08 21:05:07,759 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-12-08 21:05:07,764 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 21:05:07,768 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 21:05:07,777 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 21:05:07,795 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 21:05:07,795 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 21:05:07,795 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 21:05:07,796 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 21:05:07,796 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 21:05:07,796 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 21:05:07,796 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 21:05:07,796 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 21:05:07,796 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 21:05:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-08 21:05:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 21:05:07,810 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:07,810 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:07,812 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:07,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:07,815 INFO L82 PathProgramCache]: Analyzing trace with hash -282242941, now seen corresponding path program 1 times [2018-12-08 21:05:07,818 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:07,818 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 [2018-12-08 21:05:07,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:07,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:07,917 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:07,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:07,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 21:05:07,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 21:05:07,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 21:05:07,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 21:05:07,939 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-08 21:05:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:07,955 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-12-08 21:05:07,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 21:05:07,955 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-08 21:05:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:07,961 INFO L225 Difference]: With dead ends: 100 [2018-12-08 21:05:07,961 INFO L226 Difference]: Without dead ends: 50 [2018-12-08 21:05:07,963 INFO L631 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 [2018-12-08 21:05:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-08 21:05:07,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-08 21:05:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-08 21:05:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-08 21:05:07,986 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-12-08 21:05:07,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:07,987 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-08 21:05:07,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 21:05:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-08 21:05:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 21:05:07,987 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:07,987 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:07,988 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:07,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:07,988 INFO L82 PathProgramCache]: Analyzing trace with hash 947168922, now seen corresponding path program 1 times [2018-12-08 21:05:07,988 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:07,988 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 [2018-12-08 21:05:07,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:08,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:08,146 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:08,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:08,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 21:05:08,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 21:05:08,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 21:05:08,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:05:08,156 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-12-08 21:05:17,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:17,308 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2018-12-08 21:05:17,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 21:05:17,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-12-08 21:05:17,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:17,365 INFO L225 Difference]: With dead ends: 68 [2018-12-08 21:05:17,365 INFO L226 Difference]: Without dead ends: 53 [2018-12-08 21:05:17,366 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-08 21:05:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-08 21:05:17,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-12-08 21:05:17,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-08 21:05:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2018-12-08 21:05:17,371 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 18 [2018-12-08 21:05:17,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:17,371 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2018-12-08 21:05:17,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 21:05:17,371 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2018-12-08 21:05:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 21:05:17,372 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:17,372 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:17,372 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:17,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:17,372 INFO L82 PathProgramCache]: Analyzing trace with hash 413888862, now seen corresponding path program 1 times [2018-12-08 21:05:17,373 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:17,373 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 [2018-12-08 21:05:17,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:17,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:17,538 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:17,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:17,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 21:05:17,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 21:05:17,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 21:05:17,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:05:17,547 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2018-12-08 21:05:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:25,672 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2018-12-08 21:05:25,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 21:05:25,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-08 21:05:25,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:25,733 INFO L225 Difference]: With dead ends: 70 [2018-12-08 21:05:25,733 INFO L226 Difference]: Without dead ends: 55 [2018-12-08 21:05:25,734 INFO L631 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 [2018-12-08 21:05:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-08 21:05:25,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-12-08 21:05:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-08 21:05:25,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-12-08 21:05:25,738 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 20 [2018-12-08 21:05:25,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:25,738 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-12-08 21:05:25,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 21:05:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-12-08 21:05:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 21:05:25,739 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:25,739 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:25,739 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:25,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:25,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1852708709, now seen corresponding path program 1 times [2018-12-08 21:05:25,740 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:25,740 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 [2018-12-08 21:05:25,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:25,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:25,903 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:25,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:25,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 21:05:25,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 21:05:25,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 21:05:25,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:05:25,912 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 7 states. [2018-12-08 21:05:33,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:33,670 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2018-12-08 21:05:33,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 21:05:33,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-08 21:05:33,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:33,729 INFO L225 Difference]: With dead ends: 71 [2018-12-08 21:05:33,729 INFO L226 Difference]: Without dead ends: 55 [2018-12-08 21:05:33,730 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-08 21:05:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-08 21:05:33,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-12-08 21:05:33,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-08 21:05:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-12-08 21:05:33,734 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 21 [2018-12-08 21:05:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:33,734 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-12-08 21:05:33,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 21:05:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-12-08 21:05:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 21:05:33,735 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:33,735 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:33,735 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:33,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:33,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1043362083, now seen corresponding path program 1 times [2018-12-08 21:05:33,735 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:33,736 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/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 [2018-12-08 21:05:33,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:33,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:33,844 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:33,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:33,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 21:05:33,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 21:05:33,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 21:05:33,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 21:05:33,852 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 6 states. [2018-12-08 21:05:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:36,136 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-12-08 21:05:36,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 21:05:36,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-12-08 21:05:36,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:36,137 INFO L225 Difference]: With dead ends: 57 [2018-12-08 21:05:36,137 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 21:05:36,137 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 21:05:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 21:05:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 21:05:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 21:05:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-12-08 21:05:36,141 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 21 [2018-12-08 21:05:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:36,141 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-12-08 21:05:36,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 21:05:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-12-08 21:05:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 21:05:36,142 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:36,142 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:36,142 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:36,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:36,142 INFO L82 PathProgramCache]: Analyzing trace with hash 2052493881, now seen corresponding path program 1 times [2018-12-08 21:05:36,142 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:36,142 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-08 21:05:36,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:36,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:36,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:36,908 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:36,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:36,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 21:05:36,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 21:05:36,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 21:05:36,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:05:36,922 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-12-08 21:05:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:47,214 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2018-12-08 21:05:47,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 21:05:47,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-08 21:05:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:47,277 INFO L225 Difference]: With dead ends: 84 [2018-12-08 21:05:47,277 INFO L226 Difference]: Without dead ends: 52 [2018-12-08 21:05:47,278 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-08 21:05:47,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-08 21:05:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-12-08 21:05:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-08 21:05:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-12-08 21:05:47,281 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 25 [2018-12-08 21:05:47,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:47,281 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-12-08 21:05:47,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 21:05:47,281 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-12-08 21:05:47,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 21:05:47,282 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:47,282 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:47,282 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:47,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:47,283 INFO L82 PathProgramCache]: Analyzing trace with hash -68429369, now seen corresponding path program 1 times [2018-12-08 21:05:47,283 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:47,283 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-08 21:05:47,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:48,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:48,290 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:48,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:48,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 21:05:48,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 21:05:48,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 21:05:48,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:05:48,307 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 7 states. [2018-12-08 21:05:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:56,381 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2018-12-08 21:05:56,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 21:05:56,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-08 21:05:56,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:56,447 INFO L225 Difference]: With dead ends: 63 [2018-12-08 21:05:56,447 INFO L226 Difference]: Without dead ends: 30 [2018-12-08 21:05:56,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:05:56,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-08 21:05:56,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-08 21:05:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-08 21:05:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-12-08 21:05:56,450 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 26 [2018-12-08 21:05:56,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:56,450 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-12-08 21:05:56,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 21:05:56,451 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-12-08 21:05:56,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 21:05:56,451 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:05:56,451 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:05:56,452 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:05:56,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:05:56,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1730002734, now seen corresponding path program 1 times [2018-12-08 21:05:56,452 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:05:56,452 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-12-08 21:05:56,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:05:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:05:56,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:05:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:05:56,659 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:05:56,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:05:56,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-08 21:05:56,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 21:05:56,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 21:05:56,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-08 21:05:56,667 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 11 states. [2018-12-08 21:05:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:05:56,948 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-12-08 21:05:56,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 21:05:56,948 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-12-08 21:05:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:05:56,948 INFO L225 Difference]: With dead ends: 30 [2018-12-08 21:05:56,948 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 21:05:56,949 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-12-08 21:05:56,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 21:05:56,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 21:05:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 21:05:56,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 21:05:56,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-12-08 21:05:56,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:05:56,949 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 21:05:56,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 21:05:56,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 21:05:56,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 21:05:56,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 21:05:57,001 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-12-08 21:05:57,001 INFO L448 ceAbstractionStarter]: For program point L94-1(lines 94 98) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L444 ceAbstractionStarter]: At program point L94-2(lines 94 98) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 90) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L86-1(lines 79 92) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L86-2(lines 86 90) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 33 106) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 105) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L444 ceAbstractionStarter]: At program point L38-2(lines 38 42) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L451 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 33 106) the Hoare annotation is: true [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 70) no Hoare annotation was computed. [2018-12-08 21:05:57,002 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 33 106) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 65) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L56-2(lines 56 65) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 49) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 81 85) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L444 ceAbstractionStarter]: At program point L81-2(lines 81 85) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 103) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 92 105) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L99-2(lines 99 103) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 51) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 70) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 55 70) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 69) no Hoare annotation was computed. [2018-12-08 21:05:57,003 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 21:05:57,004 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L444 ceAbstractionStarter]: At program point L130-1(line 130) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) main_~res~0) (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) |main_#t~short20|) [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point L130-4(lines 130 133) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 120 136) the Hoare annotation is: true [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 136) no Hoare annotation was computed. [2018-12-08 21:05:57,004 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 136) no Hoare annotation was computed. [2018-12-08 21:05:57,005 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2018-12-08 21:05:57,005 INFO L448 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2018-12-08 21:05:57,005 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-08 21:05:57,005 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 108 118) no Hoare annotation was computed. [2018-12-08 21:05:57,005 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 108 118) the Hoare annotation is: true [2018-12-08 21:05:57,005 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-12-08 21:05:57,005 INFO L444 ceAbstractionStarter]: At program point L111-2(lines 111 115) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-12-08 21:05:57,005 INFO L448 ceAbstractionStarter]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2018-12-08 21:05:57,005 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 108 118) no Hoare annotation was computed. [2018-12-08 21:05:57,008 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,009 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,009 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,009 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,013 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,013 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,013 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,013 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,014 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,014 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,014 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,014 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,015 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,015 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,015 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,015 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:05:57 BoogieIcfgContainer [2018-12-08 21:05:57,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 21:05:57,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 21:05:57,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 21:05:57,017 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 21:05:57,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:05:07" (3/4) ... [2018-12-08 21:05:57,020 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 21:05:57,023 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-12-08 21:05:57,024 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 21:05:57,024 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 21:05:57,024 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-08 21:05:57,027 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-12-08 21:05:57,027 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-08 21:05:57,027 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 21:05:57,027 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 21:05:57,028 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 21:05:57,043 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-08 21:05:57,044 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-08 21:05:57,044 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-08 21:05:57,044 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-08 21:05:57,064 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3483cd84-7958-450f-91b5-1744a6026e81/bin-2019/utaipan/witness.graphml [2018-12-08 21:05:57,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 21:05:57,064 INFO L168 Benchmark]: Toolchain (without parser) took 55930.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -228.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:05:57,065 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:05:57,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.11 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 21:05:57,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-08 21:05:57,066 INFO L168 Benchmark]: Boogie Preprocessor took 25.37 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. [2018-12-08 21:05:57,066 INFO L168 Benchmark]: RCFGBuilder took 6373.97 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-12-08 21:05:57,066 INFO L168 Benchmark]: TraceAbstraction took 49261.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -103.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:05:57,066 INFO L168 Benchmark]: Witness Printer took 47.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2018-12-08 21:05:57,067 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.11 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 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 45.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 6373.97 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 49261.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -103.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 47.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 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_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: 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: 81]: Loop Invariant [2018-12-08 21:05:57,070 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,070 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,070 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,070 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,071 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,071 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,071 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,071 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 94]: Loop Invariant [2018-12-08 21:05:57,072 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,072 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,072 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,072 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,072 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,072 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,072 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-08 21:05:57,073 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 49.2s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 46.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 342 SDslu, 1231 SDs, 0 SdLazy, 321 SolverSat, 6 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 44.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 29 NumberOfFragments, 75 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 169 ConstructedInterpolants, 37 QuantifiedInterpolants, 23662 SizeOfPredicates, 25 NumberOfNonLiveVariables, 965 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...