./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0260_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_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4df82ea580918989808f581f8b270f0b85e6120 .................................................................................................................................................................................................................................................................................................................................... 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_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4df82ea580918989808f581f8b270f0b85e6120 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:04:25,469 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:04:25,470 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:04:25,479 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:04:25,479 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:04:25,480 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:04:25,481 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:04:25,482 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:04:25,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:04:25,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:04:25,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:04:25,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:04:25,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:04:25,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:04:25,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:04:25,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:04:25,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:04:25,490 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:04:25,492 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:04:25,493 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:04:25,494 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:04:25,494 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:04:25,496 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:04:25,496 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:04:25,497 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:04:25,497 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:04:25,498 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:04:25,499 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:04:25,499 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:04:25,500 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:04:25,500 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:04:25,501 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:04:25,501 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:04:25,501 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:04:25,502 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:04:25,502 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:04:25,502 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:04:25,513 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:04:25,513 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:04:25,514 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:04:25,514 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:04:25,514 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:04:25,514 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:04:25,514 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:04:25,515 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:04:25,515 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:04:25,515 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:04:25,515 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:04:25,515 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:04:25,515 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:04:25,516 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:04:25,516 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:04:25,516 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:04:25,516 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:04:25,516 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:04:25,516 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:04:25,517 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:04:25,517 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:04:25,518 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:04:25,518 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4df82ea580918989808f581f8b270f0b85e6120 [2018-12-09 10:04:25,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:04:25,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:04:25,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:04:25,554 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:04:25,554 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:04:25,555 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-12-09 10:04:25,596 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/caa48a4f5/1d5a1bf63d2e4552926d5863cbc8f60e/FLAG3d57b9678 [2018-12-09 10:04:25,995 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:04:25,996 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-12-09 10:04:26,000 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/caa48a4f5/1d5a1bf63d2e4552926d5863cbc8f60e/FLAG3d57b9678 [2018-12-09 10:04:26,424 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/caa48a4f5/1d5a1bf63d2e4552926d5863cbc8f60e [2018-12-09 10:04:26,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:04:26,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:04:26,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:04:26,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:04:26,431 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:04:26,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2133b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26, skipping insertion in model container [2018-12-09 10:04:26,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:04:26,457 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:04:26,568 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:04:26,570 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:04:26,596 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:04:26,642 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:04:26,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26 WrapperNode [2018-12-09 10:04:26,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:04:26,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:04:26,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:04:26,643 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:04:26,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:04:26,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:04:26,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:04:26,664 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:04:26,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... [2018-12-09 10:04:26,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:04:26,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:04:26,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:04:26,692 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:04:26,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:04:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:04:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-09 10:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-09 10:04:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 10:04:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 10:04:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 10:04:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 10:04:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:04:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 10:04:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 10:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 10:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:04:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 10:04:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:04:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 10:04:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 10:04:26,939 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:04:26,940 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 10:04:26,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:04:26 BoogieIcfgContainer [2018-12-09 10:04:26,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:04:26,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:04:26,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:04:26,943 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:04:26,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:04:26" (1/3) ... [2018-12-09 10:04:26,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb8b380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:04:26, skipping insertion in model container [2018-12-09 10:04:26,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:26" (2/3) ... [2018-12-09 10:04:26,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb8b380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:04:26, skipping insertion in model container [2018-12-09 10:04:26,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:04:26" (3/3) ... [2018-12-09 10:04:26,945 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0260_true-unreach-call.c [2018-12-09 10:04:26,951 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:04:26,955 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:04:26,964 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:04:26,982 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:04:26,982 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:04:26,982 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:04:26,982 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:04:26,982 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:04:26,982 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:04:26,982 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:04:26,983 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:04:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-12-09 10:04:26,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 10:04:26,996 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:04:26,997 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] [2018-12-09 10:04:26,998 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:04:27,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:04:27,001 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-12-09 10:04:27,002 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:04:27,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:04:27,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:04:27,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:04:27,031 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:04:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:27,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:04:27,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:04:27,090 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:04:27,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:04:27,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:04:27,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:04:27,102 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-12-09 10:04:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:04:27,119 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-12-09 10:04:27,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:04:27,120 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 10:04:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:04:27,125 INFO L225 Difference]: With dead ends: 144 [2018-12-09 10:04:27,126 INFO L226 Difference]: Without dead ends: 72 [2018-12-09 10:04:27,127 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 [2018-12-09 10:04:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-12-09 10:04:27,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-12-09 10:04:27,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-09 10:04:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-12-09 10:04:27,152 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-12-09 10:04:27,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:04:27,152 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-12-09 10:04:27,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:04:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-12-09 10:04:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 10:04:27,153 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:04:27,153 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] [2018-12-09 10:04:27,153 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:04:27,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:04:27,153 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-12-09 10:04:27,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:04:27,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:04:27,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:04:27,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:04:27,154 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:04:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:04:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:04:27,203 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 10:04:27,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:04:27 BoogieIcfgContainer [2018-12-09 10:04:27,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:04:27,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:04:27,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:04:27,225 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:04:27,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:04:26" (3/4) ... [2018-12-09 10:04:27,228 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 10:04:27,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:04:27,228 INFO L168 Benchmark]: Toolchain (without parser) took 801.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -66.0 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:04:27,229 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:04:27,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:04:27,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.56 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:04:27,230 INFO L168 Benchmark]: Boogie Preprocessor took 27.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:04:27,230 INFO L168 Benchmark]: RCFGBuilder took 248.60 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:04:27,230 INFO L168 Benchmark]: TraceAbstraction took 284.48 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:04:27,231 INFO L168 Benchmark]: Witness Printer took 2.60 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. [2018-12-09 10:04:27,232 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.56 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 248.60 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 284.48 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.60 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: 188]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 102, overapproximation of bitwiseAnd at line 116, overapproximation of someUnaryFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L98-L106] 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)=6442450967, \old(one_asin)=6442450953, \old(one_sqrt)=6442450950, \old(pio2_hi_asin)=6442450952, \old(pio2_lo_asin)=6442450962, \old(pio4_hi_asin)=6442450954, \old(pS0_asin)=6442450961, \old(pS1_asin)=6442450956, \old(pS2_asin)=6442450947, \old(pS3_asin)=6442450960, \old(pS4_asin)=6442450965, \old(pS5_asin)=6442450958, \old(qS1_asin)=6442450968, \old(qS2_asin)=6442450966, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450963, \old(tiny_sqrt)=6442450964, huge_asin=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] [L183] float x = 0.0f / 0.0f; VAL [huge_asin=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] [L184] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450957, huge_asin=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] [L109] float t, w, p, q, c, r, s; [L110] __int32_t hx, ix; VAL [\old(x)=6442450957, huge_asin=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=6442450957] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L116] ix = hx & 0x7fffffff VAL [\old(x)=6442450957, huge_asin=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=6442450957] [L117] COND TRUE ix == 0x3f800000 [L119] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450957, huge_asin=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=6442450957] [L184] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450948, huge_asin=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=6442450957] [L184] float res = __ieee754_asinf(x); [L187] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, huge_asin=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] [L13] return x != x; VAL [\old(x)=6442450948, \result=0, huge_asin=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=6442450948] [L187] RET, EXPR isnan_float(res) VAL [huge_asin=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=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L187] COND TRUE !isnan_float(res) [L188] __VERIFIER_error() VAL [huge_asin=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=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] - 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 [2018-12-09 10:04:28,527 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:04:28,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:04:28,534 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:04:28,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:04:28,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:04:28,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:04:28,536 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:04:28,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:04:28,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:04:28,538 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:04:28,538 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:04:28,538 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:04:28,539 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:04:28,539 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:04:28,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:04:28,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:04:28,541 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:04:28,542 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:04:28,543 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:04:28,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:04:28,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:04:28,545 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:04:28,545 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:04:28,545 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:04:28,546 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:04:28,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:04:28,546 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:04:28,547 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:04:28,547 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:04:28,547 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:04:28,548 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:04:28,548 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:04:28,548 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:04:28,548 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:04:28,549 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:04:28,549 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 10:04:28,556 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:04:28,556 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:04:28,556 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:04:28,557 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:04:28,557 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:04:28,557 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:04:28,557 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:04:28,557 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:04:28,557 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:04:28,557 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:04:28,557 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:04:28,558 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:04:28,558 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:04:28,559 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 10:04:28,559 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 10:04:28,559 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_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4df82ea580918989808f581f8b270f0b85e6120 [2018-12-09 10:04:28,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:04:28,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:04:28,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:04:28,591 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:04:28,591 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:04:28,592 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-12-09 10:04:28,630 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/cfd85dd2e/06ebfb71e4e7412bbb792037d2daec67/FLAG8f3650f7b [2018-12-09 10:04:29,084 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:04:29,084 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-12-09 10:04:29,089 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/cfd85dd2e/06ebfb71e4e7412bbb792037d2daec67/FLAG8f3650f7b [2018-12-09 10:04:29,097 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/data/cfd85dd2e/06ebfb71e4e7412bbb792037d2daec67 [2018-12-09 10:04:29,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:04:29,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:04:29,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:04:29,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:04:29,104 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:04:29,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736e3ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29, skipping insertion in model container [2018-12-09 10:04:29,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:04:29,131 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:04:29,258 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:04:29,262 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:04:29,292 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:04:29,309 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:04:29,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29 WrapperNode [2018-12-09 10:04:29,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:04:29,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:04:29,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:04:29,310 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:04:29,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:04:29,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:04:29,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:04:29,364 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:04:29,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... [2018-12-09 10:04:29,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:04:29,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:04:29,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:04:29,397 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:04:29,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:04:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:04:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:04:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-09 10:04:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-09 10:04:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 10:04:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 10:04:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 10:04:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:04:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:04:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 10:04:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 10:04:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:04:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 10:04:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:04:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:04:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 10:04:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 10:04:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:04:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 10:04:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 10:04:29,574 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:04:39,036 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:04:39,075 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:04:39,609 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:04:39,613 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:04:39,614 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 10:04:39,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:04:39 BoogieIcfgContainer [2018-12-09 10:04:39,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:04:39,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:04:39,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:04:39,616 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:04:39,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:04:29" (1/3) ... [2018-12-09 10:04:39,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1494613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:04:39, skipping insertion in model container [2018-12-09 10:04:39,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:04:29" (2/3) ... [2018-12-09 10:04:39,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1494613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:04:39, skipping insertion in model container [2018-12-09 10:04:39,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:04:39" (3/3) ... [2018-12-09 10:04:39,619 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0260_true-unreach-call.c [2018-12-09 10:04:39,625 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:04:39,632 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:04:39,643 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:04:39,660 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:04:39,661 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:04:39,661 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:04:39,661 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:04:39,661 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:04:39,661 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:04:39,661 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:04:39,661 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:04:39,661 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:04:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-12-09 10:04:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 10:04:39,675 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:04:39,675 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] [2018-12-09 10:04:39,677 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:04:39,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:04:39,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-12-09 10:04:39,682 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:04:39,682 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 10:04:39,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:04:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:39,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:04:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:39,879 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:04:39,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:04:39,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:04:39,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:04:39,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:04:39,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:04:39,906 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-12-09 10:04:39,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:04:39,929 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-12-09 10:04:39,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:04:39,931 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-09 10:04:39,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:04:39,939 INFO L225 Difference]: With dead ends: 142 [2018-12-09 10:04:39,939 INFO L226 Difference]: Without dead ends: 71 [2018-12-09 10:04:39,942 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 [2018-12-09 10:04:39,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-09 10:04:39,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-12-09 10:04:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 10:04:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-12-09 10:04:39,969 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-12-09 10:04:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:04:39,969 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-12-09 10:04:39,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:04:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-12-09 10:04:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 10:04:39,970 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:04:39,970 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] [2018-12-09 10:04:39,970 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:04:39,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:04:39,970 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-12-09 10:04:39,971 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:04:39,971 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 10:04:39,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:04:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:40,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:04:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:40,231 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:04:40,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:04:40,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:04:40,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:04:40,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:04:40,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:04:40,241 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-12-09 10:04:46,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:04:46,885 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-12-09 10:04:46,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:04:46,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-09 10:04:46,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:04:46,888 INFO L225 Difference]: With dead ends: 84 [2018-12-09 10:04:46,888 INFO L226 Difference]: Without dead ends: 74 [2018-12-09 10:04:46,889 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 [2018-12-09 10:04:46,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-09 10:04:46,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-12-09 10:04:46,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 10:04:46,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-12-09 10:04:46,897 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-12-09 10:04:46,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:04:46,897 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-12-09 10:04:46,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:04:46,897 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-12-09 10:04:46,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 10:04:46,897 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:04:46,898 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] [2018-12-09 10:04:46,898 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:04:46,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:04:46,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-12-09 10:04:46,898 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:04:46,898 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 10:04:46,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:04:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:47,085 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:04:49,032 WARN L180 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-09 10:04:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:51,135 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:04:51,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:04:51,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 10:04:51,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 10:04:51,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 10:04:51,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 10:04:51,146 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-12-09 10:04:54,911 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 10:05:02,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:05:02,260 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-12-09 10:05:02,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 10:05:02,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 10:05:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:05:02,262 INFO L225 Difference]: With dead ends: 80 [2018-12-09 10:05:02,262 INFO L226 Difference]: Without dead ends: 73 [2018-12-09 10:05:02,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 10:05:02,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-09 10:05:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-12-09 10:05:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 10:05:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-12-09 10:05:02,274 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-12-09 10:05:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:05:02,274 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-12-09 10:05:02,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 10:05:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-12-09 10:05:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 10:05:02,275 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:05:02,275 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] [2018-12-09 10:05:02,275 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:05:02,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:05:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-12-09 10:05:02,276 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:05:02,276 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 10:05:02,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:05:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:03,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:05:03,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:03,309 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:05:03,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:05:03,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:05:03,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:05:03,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:05:03,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:05:03,327 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-12-09 10:05:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:05:08,315 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2018-12-09 10:05:08,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:05:08,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-09 10:05:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:05:08,317 INFO L225 Difference]: With dead ends: 84 [2018-12-09 10:05:08,317 INFO L226 Difference]: Without dead ends: 66 [2018-12-09 10:05:08,317 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 [2018-12-09 10:05:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-09 10:05:08,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-12-09 10:05:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-09 10:05:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2018-12-09 10:05:08,322 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2018-12-09 10:05:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:05:08,322 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2018-12-09 10:05:08,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:05:08,323 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2018-12-09 10:05:08,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 10:05:08,323 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:05:08,323 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] [2018-12-09 10:05:08,323 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:05:08,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:05:08,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1429916512, now seen corresponding path program 1 times [2018-12-09 10:05:08,324 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:05:08,324 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 10:05:08,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:05:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:09,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:05:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:09,531 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:05:09,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:05:09,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:05:09,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:05:09,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:05:09,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:05:09,552 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2018-12-09 10:05:12,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:05:12,024 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-12-09 10:05:12,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:05:12,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-12-09 10:05:12,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:05:12,025 INFO L225 Difference]: With dead ends: 66 [2018-12-09 10:05:12,026 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 10:05:12,026 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 [2018-12-09 10:05:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 10:05:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 10:05:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 10:05:12,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 10:05:12,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-12-09 10:05:12,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:05:12,027 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 10:05:12,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:05:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 10:05:12,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:05:12,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 10:05:12,196 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-12-09 10:05:12,196 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-12-09 10:05:12,196 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-12-09 10:05:12,196 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:05:12,196 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:05:12,196 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 83 96) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 83 96) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 83 96) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 94) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 83 96) the Hoare annotation is: true [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point L85-1(lines 85 89) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L451 ceAbstractionStarter]: At program point L85-2(lines 85 89) the Hoare annotation is: true [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 10:05:12,197 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2018-12-09 10:05:12,197 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 176 193) the Hoare annotation is: true [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 176 193) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point L188(line 188) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L444 ceAbstractionStarter]: At program point L187(line 187) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point L187-1(lines 187 190) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 176 193) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L444 ceAbstractionStarter]: At program point L184(line 184) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point L184-1(line 184) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 163) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 151 169) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point L159-2(lines 159 163) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 137) no Hoare annotation was computed. [2018-12-09 10:05:12,198 INFO L444 ceAbstractionStarter]: At program point L122-1(lines 122 137) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (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|))) (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~2)))) [2018-12-09 10:05:12,199 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (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|))) (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~2)))) [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 136) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 169) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L148-2(lines 108 174) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L444 ceAbstractionStarter]: At program point L111-2(lines 111 115) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 125) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point L120(lines 120 137) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 108 174) the Hoare annotation is: true [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 108 174) no Hoare annotation was computed. [2018-12-09 10:05:12,199 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 108 174) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L154-1(lines 154 158) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L444 ceAbstractionStarter]: At program point L154-2(lines 154 158) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (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|))) (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~2)))) [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L117(lines 117 137) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L451 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: true [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-12-09 10:05:12,200 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: true [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-12-09 10:05:12,201 INFO L451 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: true [2018-12-09 10:05:12,201 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-12-09 10:05:12,202 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-12-09 10:05:12,202 INFO L451 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: true [2018-12-09 10:05:12,202 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-12-09 10:05:12,202 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-12-09 10:05:12,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:05:12 BoogieIcfgContainer [2018-12-09 10:05:12,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:05:12,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:05:12,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:05:12,214 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:05:12,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:04:39" (3/4) ... [2018-12-09 10:05:12,216 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:05:12,220 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 10:05:12,220 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 10:05:12,220 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-09 10:05:12,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 10:05:12,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-12-09 10:05:12,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-09 10:05:12,224 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-12-09 10:05:12,224 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-12-09 10:05:12,224 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 10:05:12,225 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 10:05:12,240 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 10:05:12,241 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && ~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))) && (\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) [2018-12-09 10:05:12,263 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_92a0f52e-5165-45ed-ab60-2033782da2b2/bin-2019/utaipan/witness.graphml [2018-12-09 10:05:12,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:05:12,264 INFO L168 Benchmark]: Toolchain (without parser) took 43164.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 944.7 MB in the beginning and 880.3 MB in the end (delta: 64.4 MB). Peak memory consumption was 208.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:05:12,264 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:05:12,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.19 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:05:12,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -210.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:05:12,264 INFO L168 Benchmark]: Boogie Preprocessor took 32.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:05:12,265 INFO L168 Benchmark]: RCFGBuilder took 10217.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:05:12,265 INFO L168 Benchmark]: TraceAbstraction took 32598.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 887.0 MB in the end (delta: 198.6 MB). Peak memory consumption was 198.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:05:12,265 INFO L168 Benchmark]: Witness Printer took 49.51 ms. Allocated memory is still 1.2 GB. Free memory was 887.0 MB in the beginning and 880.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:05:12,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.19 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -210.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10217.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32598.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 887.0 MB in the end (delta: 198.6 MB). Peak memory consumption was 198.6 MB. Max. memory is 11.5 GB. * Witness Printer took 49.51 ms. Allocated memory is still 1.2 GB. Free memory was 887.0 MB in the beginning and 880.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_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: 188]: 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: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 10:05:12,270 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && ~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))) && (\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) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 32.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 25.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 198 SDslu, 1429 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.3s 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, 191 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 18681 SizeOfPredicates, 16 NumberOfNonLiveVariables, 591 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...