./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_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_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dddb731074a9a249891d6adbc7c778d25efe28d ..................................................................................................................................................................................................................................................................................................................... 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_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dddb731074a9a249891d6adbc7c778d25efe28d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 13:14:30,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:14:30,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:14:30,618 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:14:30,618 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:14:30,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:14:30,619 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:14:30,620 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:14:30,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:14:30,621 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:14:30,621 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:14:30,622 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:14:30,622 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:14:30,623 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:14:30,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:14:30,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:14:30,624 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:14:30,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:14:30,626 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:14:30,626 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:14:30,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:14:30,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:14:30,629 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:14:30,629 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:14:30,629 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:14:30,629 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:14:30,630 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:14:30,630 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:14:30,631 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:14:30,631 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:14:30,631 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:14:30,632 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:14:30,632 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:14:30,632 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:14:30,632 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:14:30,633 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:14:30,633 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 13:14:30,640 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:14:30,640 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:14:30,641 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 13:14:30,641 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 13:14:30,641 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:14:30,641 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:14:30,641 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 13:14:30,641 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:14:30,641 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:14:30,641 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:14:30,642 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 13:14:30,642 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 13:14:30,643 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 13:14:30,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 13:14:30,643 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_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-08 13:14:30,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:14:30,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:14:30,669 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:14:30,670 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:14:30,670 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:14:30,671 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-08 13:14:30,705 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/ca59e717e/f938a5f6f57349f58fe3d4353557cb9c/FLAGe6f916a04 [2018-12-08 13:14:31,122 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:14:31,123 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-08 13:14:31,127 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/ca59e717e/f938a5f6f57349f58fe3d4353557cb9c/FLAGe6f916a04 [2018-12-08 13:14:31,135 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/ca59e717e/f938a5f6f57349f58fe3d4353557cb9c [2018-12-08 13:14:31,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:14:31,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:14:31,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:14:31,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:14:31,141 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:14:31,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a007e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31, skipping insertion in model container [2018-12-08 13:14:31,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:14:31,162 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:14:31,273 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:14:31,276 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:14:31,303 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:14:31,347 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:14:31,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31 WrapperNode [2018-12-08 13:14:31,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:14:31,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:14:31,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:14:31,348 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:14:31,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:14:31,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:14:31,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:14:31,368 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:14:31,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... [2018-12-08 13:14:31,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:14:31,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:14:31,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:14:31,395 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:14:31,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/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 13:14:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 13:14:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 13:14:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-08 13:14:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-08 13:14:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 13:14:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 13:14:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 13:14:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 13:14:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 13:14:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 13:14:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-08 13:14:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-08 13:14:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 13:14:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 13:14:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:14:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:14:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 13:14:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-08 13:14:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-08 13:14:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 13:14:31,657 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:14:31,657 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-08 13:14:31,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:14:31 BoogieIcfgContainer [2018-12-08 13:14:31,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:14:31,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 13:14:31,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 13:14:31,660 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 13:14:31,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 01:14:31" (1/3) ... [2018-12-08 13:14:31,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a35f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 01:14:31, skipping insertion in model container [2018-12-08 13:14:31,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:31" (2/3) ... [2018-12-08 13:14:31,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a35f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 01:14:31, skipping insertion in model container [2018-12-08 13:14:31,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:14:31" (3/3) ... [2018-12-08 13:14:31,662 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-08 13:14:31,668 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 13:14:31,673 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 13:14:31,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 13:14:31,698 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 13:14:31,699 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 13:14:31,699 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 13:14:31,699 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 13:14:31,699 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 13:14:31,699 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 13:14:31,699 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 13:14:31,699 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 13:14:31,699 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 13:14:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-12-08 13:14:31,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 13:14:31,713 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:14:31,714 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 13:14:31,715 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:14:31,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:14:31,718 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-12-08 13:14:31,719 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:14:31,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:14:31,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:14:31,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:14:31,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:14:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:14:31,805 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 13:14:31,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:14:31,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 13:14:31,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 13:14:31,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 13:14:31,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 13:14:31,817 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-12-08 13:14:31,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:14:31,834 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-12-08 13:14:31,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 13:14:31,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-08 13:14:31,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:14:31,840 INFO L225 Difference]: With dead ends: 144 [2018-12-08 13:14:31,840 INFO L226 Difference]: Without dead ends: 72 [2018-12-08 13:14:31,842 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 13:14:31,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-12-08 13:14:31,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-12-08 13:14:31,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-08 13:14:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-12-08 13:14:31,866 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-12-08 13:14:31,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:14:31,866 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-12-08 13:14:31,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 13:14:31,866 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-12-08 13:14:31,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 13:14:31,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:14:31,867 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] [2018-12-08 13:14:31,867 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:14:31,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:14:31,868 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-12-08 13:14:31,868 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:14:31,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:14:31,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:14:31,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:14:31,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:14:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:14:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:14:31,917 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 13:14:31,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 01:14:31 BoogieIcfgContainer [2018-12-08 13:14:31,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 13:14:31,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:14:31,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:14:31,939 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:14:31,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:14:31" (3/4) ... [2018-12-08 13:14:31,942 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 13:14:31,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:14:31,942 INFO L168 Benchmark]: Toolchain (without parser) took 804.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -74.8 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-12-08 13:14:31,943 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:14:31,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-12-08 13:14:31,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.71 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:14:31,944 INFO L168 Benchmark]: Boogie Preprocessor took 26.92 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:14:31,944 INFO L168 Benchmark]: RCFGBuilder took 263.17 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-12-08 13:14:31,945 INFO L168 Benchmark]: TraceAbstraction took 280.81 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: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:14:31,945 INFO L168 Benchmark]: Witness Printer took 2.61 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 13:14:31,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.71 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.92 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 263.17 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 280.81 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: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.61 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: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450968, \old(huge_floor)=6442450957, \old(one_asin)=6442450960, \old(one_sqrt)=6442450958, \old(pio2_hi_asin)=6442450959, \old(pio2_lo_asin)=6442450952, \old(pio4_hi_asin)=6442450961, \old(pS0_asin)=6442450966, \old(pS1_asin)=6442450962, \old(pS2_asin)=6442450946, \old(pS3_asin)=6442450965, \old(pS4_asin)=6442450954, \old(pS5_asin)=6442450951, \old(qS1_asin)=6442450969, \old(qS2_asin)=6442450955, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450967, \old(tiny_sqrt)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = -1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L232] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 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=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 13:14:33,246 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:14:33,247 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:14:33,253 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:14:33,253 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:14:33,254 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:14:33,255 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:14:33,256 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:14:33,257 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:14:33,257 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:14:33,258 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:14:33,258 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:14:33,259 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:14:33,260 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:14:33,260 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:14:33,261 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:14:33,261 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:14:33,262 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:14:33,263 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:14:33,264 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:14:33,265 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:14:33,266 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:14:33,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:14:33,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:14:33,268 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:14:33,268 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:14:33,269 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:14:33,269 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:14:33,270 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:14:33,270 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:14:33,270 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:14:33,271 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:14:33,271 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:14:33,271 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:14:33,272 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:14:33,272 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:14:33,272 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 13:14:33,281 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:14:33,281 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:14:33,281 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 13:14:33,282 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 13:14:33,282 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:14:33,282 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:14:33,282 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 13:14:33,283 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 13:14:33,283 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 13:14:33,284 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:14:33,284 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:14:33,284 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:14:33,284 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 13:14:33,284 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:14:33,284 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 13:14:33,284 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 13:14:33,285 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 13:14:33,285 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 13:14:33,285 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:14:33,285 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 13:14:33,285 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 13:14:33,285 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 13:14:33,285 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 13:14:33,285 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 13:14:33,286 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 13:14:33,286 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_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-08 13:14:33,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:14:33,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:14:33,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:14:33,314 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:14:33,315 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:14:33,315 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-08 13:14:33,359 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/2749c8479/744d183736fd4de0a79cb98000ff2280/FLAGfd4ec960a [2018-12-08 13:14:33,784 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:14:33,784 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-08 13:14:33,789 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/2749c8479/744d183736fd4de0a79cb98000ff2280/FLAGfd4ec960a [2018-12-08 13:14:33,796 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/data/2749c8479/744d183736fd4de0a79cb98000ff2280 [2018-12-08 13:14:33,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:14:33,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:14:33,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:14:33,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:14:33,801 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:14:33,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:33,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12c072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33, skipping insertion in model container [2018-12-08 13:14:33,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:33,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:14:33,821 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:14:33,940 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:14:33,944 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:14:33,978 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:14:33,993 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:14:33,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33 WrapperNode [2018-12-08 13:14:33,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:14:33,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:14:33,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:14:33,995 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:14:34,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:14:34,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:14:34,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:14:34,014 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:14:34,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... [2018-12-08 13:14:34,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:14:34,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:14:34,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:14:34,075 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:14:34,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/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 13:14:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 13:14:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 13:14:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-08 13:14:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-08 13:14:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-08 13:14:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 13:14:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 13:14:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 13:14:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 13:14:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-08 13:14:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-08 13:14:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 13:14:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 13:14:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:14:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:14:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-08 13:14:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-08 13:14:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-08 13:14:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 13:14:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 13:14:34,235 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 13:14:43,187 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 13:14:43,227 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 13:14:43,673 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 13:14:43,678 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:14:43,678 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-08 13:14:43,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:14:43 BoogieIcfgContainer [2018-12-08 13:14:43,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:14:43,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 13:14:43,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 13:14:43,682 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 13:14:43,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 01:14:33" (1/3) ... [2018-12-08 13:14:43,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 01:14:43, skipping insertion in model container [2018-12-08 13:14:43,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:14:33" (2/3) ... [2018-12-08 13:14:43,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 01:14:43, skipping insertion in model container [2018-12-08 13:14:43,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:14:43" (3/3) ... [2018-12-08 13:14:43,685 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-08 13:14:43,691 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 13:14:43,696 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 13:14:43,705 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 13:14:43,722 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 13:14:43,722 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 13:14:43,723 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 13:14:43,723 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 13:14:43,723 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 13:14:43,723 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 13:14:43,723 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 13:14:43,723 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 13:14:43,723 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 13:14:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-12-08 13:14:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 13:14:43,737 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:14:43,738 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 13:14:43,740 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:14:43,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:14:43,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-12-08 13:14:43,746 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:14:43,746 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/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 13:14:43,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:14:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:14:43,930 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:14:43,940 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 13:14:43,941 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:14:43,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:14:43,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 13:14:43,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 13:14:43,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 13:14:43,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 13:14:43,967 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-12-08 13:14:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:14:43,985 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-12-08 13:14:43,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 13:14:43,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-08 13:14:43,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:14:43,992 INFO L225 Difference]: With dead ends: 142 [2018-12-08 13:14:43,992 INFO L226 Difference]: Without dead ends: 71 [2018-12-08 13:14:43,994 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 13:14:44,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-08 13:14:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-12-08 13:14:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-08 13:14:44,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-12-08 13:14:44,020 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-12-08 13:14:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:14:44,020 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-12-08 13:14:44,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 13:14:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-12-08 13:14:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 13:14:44,021 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:14:44,021 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 13:14:44,021 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:14:44,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:14:44,022 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-12-08 13:14:44,022 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:14:44,022 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/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 13:14:44,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:14:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:14:44,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:14:44,278 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 13:14:44,278 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:14:44,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:14:44,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 13:14:44,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 13:14:44,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 13:14:44,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 13:14:44,289 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-12-08 13:14:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:14:50,000 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-12-08 13:14:50,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 13:14:50,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-08 13:14:50,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:14:50,003 INFO L225 Difference]: With dead ends: 84 [2018-12-08 13:14:50,003 INFO L226 Difference]: Without dead ends: 74 [2018-12-08 13:14:50,003 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 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 13:14:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-08 13:14:50,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-12-08 13:14:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-08 13:14:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-12-08 13:14:50,010 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-12-08 13:14:50,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:14:50,010 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-12-08 13:14:50,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 13:14:50,010 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-12-08 13:14:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 13:14:50,010 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:14:50,011 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] [2018-12-08 13:14:50,011 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:14:50,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:14:50,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-12-08 13:14:50,011 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:14:50,011 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/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 13:14:50,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:14:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:14:50,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:14:52,130 WARN L180 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-08 13:14:54,121 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 13:14:54,121 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:14:54,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:14:54,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 13:14:54,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 13:14:54,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 13:14:54,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-08 13:14:54,132 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-12-08 13:14:57,325 WARN L180 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-08 13:15:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:15:03,258 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-12-08 13:15:03,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 13:15:03,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-08 13:15:03,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:15:03,260 INFO L225 Difference]: With dead ends: 80 [2018-12-08 13:15:03,260 INFO L226 Difference]: Without dead ends: 73 [2018-12-08 13:15:03,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-08 13:15:03,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-08 13:15:03,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-12-08 13:15:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-08 13:15:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-12-08 13:15:03,271 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-12-08 13:15:03,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:15:03,271 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-12-08 13:15:03,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 13:15:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-12-08 13:15:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 13:15:03,272 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:15:03,272 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] [2018-12-08 13:15:03,272 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:15:03,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:15:03,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-12-08 13:15:03,273 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:15:03,273 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/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 13:15:03,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:15:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:15:04,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:15:04,299 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 13:15:04,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:15:04,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:15:04,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 13:15:04,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 13:15:04,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 13:15:04,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 13:15:04,316 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-12-08 13:15:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:15:09,371 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2018-12-08 13:15:09,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 13:15:09,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-08 13:15:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:15:09,373 INFO L225 Difference]: With dead ends: 84 [2018-12-08 13:15:09,373 INFO L226 Difference]: Without dead ends: 66 [2018-12-08 13:15:09,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 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 13:15:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-08 13:15:09,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-12-08 13:15:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-08 13:15:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2018-12-08 13:15:09,380 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2018-12-08 13:15:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:15:09,381 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2018-12-08 13:15:09,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 13:15:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2018-12-08 13:15:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-08 13:15:09,382 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:15:09,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:15:09,382 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:15:09,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:15:09,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1429916512, now seen corresponding path program 1 times [2018-12-08 13:15:09,383 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:15:09,383 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/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 13:15:09,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:15:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:15:10,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:15:10,557 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 13:15:10,558 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:15:10,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:15:10,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 13:15:10,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 13:15:10,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 13:15:10,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 13:15:10,577 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2018-12-08 13:15:12,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:15:12,987 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-12-08 13:15:12,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 13:15:12,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-12-08 13:15:12,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:15:12,989 INFO L225 Difference]: With dead ends: 66 [2018-12-08 13:15:12,989 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 13:15:12,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 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 13:15:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 13:15:12,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 13:15:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 13:15:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 13:15:12,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-12-08 13:15:12,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:15:12,990 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 13:15:12,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 13:15:12,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 13:15:12,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 13:15:12,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 13:15:13,200 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L451 ceAbstractionStarter]: At program point L130-2(lines 130 134) the Hoare annotation is: true [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 128 141) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point L135-2(lines 135 139) no Hoare annotation was computed. [2018-12-08 13:15:13,201 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 13:15:13,202 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 13:15:13,202 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-12-08 13:15:13,202 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L448 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-12-08 13:15:13,202 INFO L448 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L444 ceAbstractionStarter]: At program point L229(line 229) 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 13:15:13,202 INFO L448 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-12-08 13:15:13,202 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L444 ceAbstractionStarter]: At program point L156-2(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L444 ceAbstractionStarter]: At program point L199-2(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-12-08 13:15:13,203 INFO L448 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 196 214) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L204-2(lines 204 208) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L444 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L451 ceAbstractionStarter]: At program point L98-2(lines 98 107) the Hoare annotation is: true [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L98-3(lines 62 127) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-12-08 13:15:13,204 INFO L448 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L451 ceAbstractionStarter]: At program point L67-2(lines 67 71) the Hoare annotation is: true [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 71) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L451 ceAbstractionStarter]: At program point L121-2(lines 121 125) the Hoare annotation is: true [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L121-3(lines 121 125) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 84 85) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L451 ceAbstractionStarter]: At program point L84-3(lines 84 85) the Hoare annotation is: true [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L84-4(lines 84 85) no Hoare annotation was computed. [2018-12-08 13:15:13,205 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-12-08 13:15:13,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,213 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,213 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 01:15:13 BoogieIcfgContainer [2018-12-08 13:15:13,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 13:15:13,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:15:13,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:15:13,216 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:15:13,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:14:43" (3/4) ... [2018-12-08 13:15:13,218 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 13:15:13,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-08 13:15:13,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 13:15:13,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-08 13:15:13,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 13:15:13,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-12-08 13:15:13,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-08 13:15:13,226 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-12-08 13:15:13,226 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-08 13:15:13,226 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 13:15:13,226 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 13:15:13,242 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-08 13:15:13,242 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-12-08 13:15:13,266 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bad4671a-d313-4866-8d9c-fd41adf249b5/bin-2019/uautomizer/witness.graphml [2018-12-08 13:15:13,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:15:13,267 INFO L168 Benchmark]: Toolchain (without parser) took 39468.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.4 MB in the beginning and 844.8 MB in the end (delta: 98.6 MB). Peak memory consumption was 219.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:13,267 INFO L168 Benchmark]: CDTParser took 0.15 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 13:15:13,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.68 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:13,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.03 ms. Allocated memory is still 1.0 GB. Free memory is still 921.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:15:13,268 INFO L168 Benchmark]: Boogie Preprocessor took 60.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:13,268 INFO L168 Benchmark]: RCFGBuilder took 9604.53 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: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:13,268 INFO L168 Benchmark]: TraceAbstraction took 29535.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 851.7 MB in the end (delta: 210.7 MB). Peak memory consumption was 210.7 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:13,268 INFO L168 Benchmark]: Witness Printer took 50.49 ms. Allocated memory is still 1.1 GB. Free memory was 851.7 MB in the beginning and 844.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-08 13:15:13,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.68 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.03 ms. Allocated memory is still 1.0 GB. Free memory is still 921.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9604.53 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: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29535.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 851.7 MB in the end (delta: 210.7 MB). Peak memory consumption was 210.7 MB. Max. memory is 11.5 GB. * Witness Printer took 50.49 ms. Allocated memory is still 1.1 GB. Free memory was 851.7 MB in the beginning and 844.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: 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: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-12-08 13:15:13,273 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,273 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,273 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,273 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,273 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,275 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,275 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,275 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-08 13:15:13,275 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 29.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 22.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 198 SDslu, 1429 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 209 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19548 SizeOfPredicates, 16 NumberOfNonLiveVariables, 606 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...