./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_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_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/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 f9996153423fecedcbbebbb98f8557ca25433f0f .................................................................................................................................................................................................................................................................................................................................... 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_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/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 f9996153423fecedcbbebbb98f8557ca25433f0f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:05:44,459 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:05:44,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:05:44,467 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:05:44,467 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:05:44,468 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:05:44,468 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:05:44,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:05:44,470 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:05:44,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:05:44,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:05:44,472 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:05:44,472 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:05:44,473 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:05:44,474 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:05:44,474 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:05:44,475 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:05:44,476 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:05:44,477 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:05:44,478 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:05:44,479 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:05:44,480 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:05:44,482 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:05:44,482 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:05:44,482 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:05:44,483 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:05:44,483 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:05:44,484 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:05:44,485 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:05:44,485 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:05:44,485 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:05:44,486 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:05:44,486 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:05:44,486 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:05:44,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:05:44,487 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:05:44,487 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 19:05:44,494 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:05:44,494 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:05:44,494 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:05:44,494 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:05:44,495 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 19:05:44,495 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:05:44,496 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:05:44,496 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:05:44,497 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:05:44,497 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:05:44,497 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:05:44,498 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 19:05:44,498 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:05:44,498 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 19:05:44,498 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 19:05:44,498 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_b0f31de7-d81d-4878-9a01-cff8876d279e/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 -> f9996153423fecedcbbebbb98f8557ca25433f0f [2018-12-08 19:05:44,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:05:44,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:05:44,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:05:44,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:05:44,525 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:05:44,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-12-08 19:05:44,561 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/c401e3540/07075be7740d4066bc1683118e1f29c2/FLAG4dc59fff5 [2018-12-08 19:05:44,950 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:05:44,950 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-12-08 19:05:44,954 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/c401e3540/07075be7740d4066bc1683118e1f29c2/FLAG4dc59fff5 [2018-12-08 19:05:44,963 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/c401e3540/07075be7740d4066bc1683118e1f29c2 [2018-12-08 19:05:44,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:05:44,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:05:44,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:05:44,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:05:44,968 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:05:44,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:05:44" (1/1) ... [2018-12-08 19:05:44,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ddcec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:44, skipping insertion in model container [2018-12-08 19:05:44,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:05:44" (1/1) ... [2018-12-08 19:05:44,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:05:44,987 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:05:45,091 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:05:45,093 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:05:45,117 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:05:45,164 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:05:45,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45 WrapperNode [2018-12-08 19:05:45,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:05:45,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:05:45,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:05:45,165 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:05:45,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:05:45,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:05:45,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:05:45,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:05:45,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... [2018-12-08 19:05:45,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:05:45,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:05:45,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:05:45,202 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:05:45,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:05:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 19:05:45,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 19:05:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-12-08 19:05:45,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-12-08 19:05:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:05:45,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:05:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 19:05:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 19:05:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:05:45,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:05:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 19:05:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:05:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:05:45,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:05:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 19:05:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:05:45,383 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:05:45,383 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 19:05:45,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:05:45 BoogieIcfgContainer [2018-12-08 19:05:45,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:05:45,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:05:45,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:05:45,386 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:05:45,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:05:44" (1/3) ... [2018-12-08 19:05:45,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a860bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:05:45, skipping insertion in model container [2018-12-08 19:05:45,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:45" (2/3) ... [2018-12-08 19:05:45,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a860bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:05:45, skipping insertion in model container [2018-12-08 19:05:45,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:05:45" (3/3) ... [2018-12-08 19:05:45,388 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b_true-unreach-call.c [2018-12-08 19:05:45,393 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:05:45,397 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:05:45,406 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:05:45,425 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:05:45,425 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:05:45,425 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:05:45,425 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:05:45,425 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:05:45,425 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:05:45,425 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:05:45,425 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:05:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-08 19:05:45,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 19:05:45,439 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:05:45,439 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:05:45,441 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:05:45,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:05:45,444 INFO L82 PathProgramCache]: Analyzing trace with hash -2053347257, now seen corresponding path program 1 times [2018-12-08 19:05:45,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:05:45,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:05:45,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:05:45,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:05:45,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:05:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:05:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:05:45,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:05:45,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:05:45,532 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:05:45,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 19:05:45,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 19:05:45,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:05:45,543 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-08 19:05:45,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:05:45,556 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-12-08 19:05:45,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 19:05:45,557 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-08 19:05:45,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:05:45,563 INFO L225 Difference]: With dead ends: 76 [2018-12-08 19:05:45,563 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 19:05:45,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:05:45,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 19:05:45,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 19:05:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 19:05:45,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-12-08 19:05:45,588 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 22 [2018-12-08 19:05:45,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:05:45,588 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-12-08 19:05:45,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 19:05:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-12-08 19:05:45,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 19:05:45,589 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:05:45,589 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] [2018-12-08 19:05:45,589 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:05:45,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:05:45,590 INFO L82 PathProgramCache]: Analyzing trace with hash 435849502, now seen corresponding path program 1 times [2018-12-08 19:05:45,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:05:45,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:05:45,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:05:45,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:05:45,591 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:05:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:05:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:05:45,645 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:05:45,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:05:45 BoogieIcfgContainer [2018-12-08 19:05:45,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:05:45,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:05:45,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:05:45,667 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:05:45,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:05:45" (3/4) ... [2018-12-08 19:05:45,670 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 19:05:45,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:05:45,671 INFO L168 Benchmark]: Toolchain (without parser) took 705.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.5 MB in the beginning and 1.1 GB in the end (delta: -121.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-12-08 19:05:45,672 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:05:45,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.5 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-12-08 19:05:45,672 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.98 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:05:45,673 INFO L168 Benchmark]: Boogie Preprocessor took 20.18 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:05:45,673 INFO L168 Benchmark]: RCFGBuilder took 182.04 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: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:05:45,673 INFO L168 Benchmark]: TraceAbstraction took 282.91 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:05:45,674 INFO L168 Benchmark]: Witness Printer took 3.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:05:45,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.5 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.98 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.18 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 182.04 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: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 282.91 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 151]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 137, overapproximation of bitwiseOr at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=6442450962, \old(Lg2_log)=6442450966, \old(Lg3_log)=6442450947, \old(Lg4_log)=6442450950, \old(Lg5_log)=6442450952, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450956, \old(ln2_hi_log)=6442450949, \old(ln2_lo_log)=6442450953, \old(two54_log)=6442450960, \old(zero)=6442450963, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L146] double x = -1.0 / 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L147] CALL, EXPR __ieee754_log(x) VAL [\old(x)=6442450965, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=6442450965, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450965, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [\old(x)=6442450965, hx=-2147483646, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483668, two54_log=18014398509481984, x=6442450965, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=6442450965, hx=-2147483646, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483668, two54_log=18014398509481984, x=6442450965, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [\old(x)=6442450965, hx=-2147483646, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483668, two54_log=18014398509481984, x=6442450965, zero=0] [L147] RET, EXPR __ieee754_log(x) VAL [__ieee754_log(x)=6442450951, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450965, zero=0] [L147] double res = __ieee754_log(x); [L150] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450951, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L137] return x != x; VAL [\old(x)=6442450951, \result=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6442450951, zero=0] [L150] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=6442450951, two54_log=18014398509481984, x=6442450965, zero=0] [L150] COND TRUE !isnan_double(res) [L151] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=6442450951, two54_log=18014398509481984, x=6442450965, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 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=42occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:05:46,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:05:46,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:05:46,969 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:05:46,969 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:05:46,969 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:05:46,970 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:05:46,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:05:46,971 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:05:46,972 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:05:46,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:05:46,972 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:05:46,973 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:05:46,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:05:46,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:05:46,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:05:46,974 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:05:46,975 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:05:46,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:05:46,977 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:05:46,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:05:46,978 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:05:46,979 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:05:46,980 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:05:46,980 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:05:46,980 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:05:46,981 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:05:46,981 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:05:46,982 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:05:46,982 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:05:46,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:05:46,983 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:05:46,983 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:05:46,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:05:46,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:05:46,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:05:46,984 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 19:05:46,991 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:05:46,991 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:05:46,992 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:05:46,992 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:05:46,992 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:05:46,992 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:05:46,992 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:05:46,992 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:05:46,993 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:05:46,993 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:05:46,993 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:05:46,993 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:05:46,993 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:05:46,993 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:05:46,993 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:05:46,994 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:05:46,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:05:46,995 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 19:05:46,995 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 19:05:46,995 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_b0f31de7-d81d-4878-9a01-cff8876d279e/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 -> f9996153423fecedcbbebbb98f8557ca25433f0f [2018-12-08 19:05:47,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:05:47,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:05:47,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:05:47,028 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:05:47,028 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:05:47,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-12-08 19:05:47,074 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/2b5f2287f/297bd6f1dadd4c2ca8cc8fac8966b777/FLAG126357860 [2018-12-08 19:05:47,465 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:05:47,465 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-12-08 19:05:47,471 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/2b5f2287f/297bd6f1dadd4c2ca8cc8fac8966b777/FLAG126357860 [2018-12-08 19:05:47,483 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/data/2b5f2287f/297bd6f1dadd4c2ca8cc8fac8966b777 [2018-12-08 19:05:47,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:05:47,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:05:47,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:05:47,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:05:47,490 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:05:47,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47, skipping insertion in model container [2018-12-08 19:05:47,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:05:47,509 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:05:47,617 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:05:47,620 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:05:47,648 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:05:47,665 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:05:47,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47 WrapperNode [2018-12-08 19:05:47,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:05:47,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:05:47,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:05:47,666 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:05:47,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:05:47,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:05:47,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:05:47,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:05:47,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... [2018-12-08 19:05:47,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:05:47,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:05:47,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:05:47,735 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:05:47,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:05:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 19:05:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 19:05:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 19:05:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-12-08 19:05:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-12-08 19:05:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 19:05:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:05:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:05:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:05:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:05:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:05:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 19:05:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:05:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:05:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 19:05:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:05:51,997 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:06:10,459 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:06:10,518 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:06:10,622 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:06:10,622 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 19:06:10,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:06:10 BoogieIcfgContainer [2018-12-08 19:06:10,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:06:10,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:06:10,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:06:10,625 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:06:10,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:05:47" (1/3) ... [2018-12-08 19:06:10,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e96886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:06:10, skipping insertion in model container [2018-12-08 19:06:10,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:05:47" (2/3) ... [2018-12-08 19:06:10,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e96886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:06:10, skipping insertion in model container [2018-12-08 19:06:10,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:06:10" (3/3) ... [2018-12-08 19:06:10,627 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b_true-unreach-call.c [2018-12-08 19:06:10,632 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:06:10,636 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:06:10,645 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:06:10,661 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 19:06:10,662 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:06:10,662 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:06:10,662 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:06:10,662 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:06:10,662 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:06:10,663 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:06:10,663 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:06:10,663 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:06:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-08 19:06:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 19:06:10,675 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:06:10,675 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, 1] [2018-12-08 19:06:10,677 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:06:10,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:06:10,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2044717819, now seen corresponding path program 1 times [2018-12-08 19:06:10,682 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:06:10,683 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 19:06:10,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:06:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:06:11,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:06:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:06:11,373 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:06:11,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:06:11,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:06:11,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 19:06:11,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 19:06:11,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:06:11,400 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-12-08 19:06:11,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:06:11,414 INFO L93 Difference]: Finished difference Result 74 states and 108 transitions. [2018-12-08 19:06:11,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 19:06:11,415 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-08 19:06:11,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:06:11,422 INFO L225 Difference]: With dead ends: 74 [2018-12-08 19:06:11,422 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 19:06:11,424 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:06:11,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 19:06:11,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-08 19:06:11,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 19:06:11,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2018-12-08 19:06:11,450 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 21 [2018-12-08 19:06:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:06:11,451 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-12-08 19:06:11,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 19:06:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2018-12-08 19:06:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 19:06:11,452 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:06:11,452 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:06:11,452 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:06:11,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:06:11,452 INFO L82 PathProgramCache]: Analyzing trace with hash -692382008, now seen corresponding path program 1 times [2018-12-08 19:06:11,453 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:06:11,453 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-08 19:06:11,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:06:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:06:12,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:06:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:06:12,269 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:06:12,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:06:12,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 19:06:12,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 19:06:12,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 19:06:12,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 19:06:12,292 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 6 states. [2018-12-08 19:06:19,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:06:19,518 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2018-12-08 19:06:19,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 19:06:19,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-08 19:06:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:06:19,522 INFO L225 Difference]: With dead ends: 51 [2018-12-08 19:06:19,522 INFO L226 Difference]: Without dead ends: 41 [2018-12-08 19:06:19,522 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 19:06:19,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-08 19:06:19,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-12-08 19:06:19,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 19:06:19,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2018-12-08 19:06:19,527 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 22 [2018-12-08 19:06:19,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:06:19,528 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-12-08 19:06:19,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 19:06:19,528 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2018-12-08 19:06:19,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 19:06:19,528 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:06:19,528 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:06:19,529 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:06:19,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:06:19,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1795449561, now seen corresponding path program 1 times [2018-12-08 19:06:19,529 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:06:19,529 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-08 19:06:19,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:06:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:06:19,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:06:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:06:19,684 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:06:19,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:06:19,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 19:06:19,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 19:06:19,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 19:06:19,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 19:06:19,696 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand 6 states. [2018-12-08 19:06:29,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:06:29,661 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2018-12-08 19:06:30,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 19:06:30,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-08 19:06:30,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:06:30,284 INFO L225 Difference]: With dead ends: 62 [2018-12-08 19:06:30,284 INFO L226 Difference]: Without dead ends: 39 [2018-12-08 19:06:30,285 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-08 19:06:30,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-08 19:06:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-12-08 19:06:30,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 19:06:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-12-08 19:06:30,289 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 22 [2018-12-08 19:06:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:06:30,290 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-12-08 19:06:30,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 19:06:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-12-08 19:06:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 19:06:30,290 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:06:30,290 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] [2018-12-08 19:06:30,291 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:06:30,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:06:30,291 INFO L82 PathProgramCache]: Analyzing trace with hash 649234454, now seen corresponding path program 1 times [2018-12-08 19:06:30,291 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:06:30,291 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-08 19:06:30,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:06:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:06:31,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:06:33,390 WARN L854 $PredicateComparison]: unable to prove that (and (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |c___ieee754_log_#in~x| |c___ieee754_log_#in~x|) c_~zero~0) |c___ieee754_log_#res|) (= (_ +zero 11 53) c_~zero~0)) is different from true [2018-12-08 19:06:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:06:33,491 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:06:33,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:06:33,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-08 19:06:33,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 19:06:33,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 19:06:33,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=56, Unknown=1, NotChecked=14, Total=90 [2018-12-08 19:06:33,506 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 10 states. [2018-12-08 19:06:39,681 WARN L180 SmtUtils]: Spent 3.48 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-08 19:06:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:06:43,198 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-12-08 19:06:43,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 19:06:43,199 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-12-08 19:06:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:06:43,200 INFO L225 Difference]: With dead ends: 46 [2018-12-08 19:06:43,200 INFO L226 Difference]: Without dead ends: 39 [2018-12-08 19:06:43,200 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=44, Invalid=141, Unknown=1, NotChecked=24, Total=210 [2018-12-08 19:06:43,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-08 19:06:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-12-08 19:06:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 19:06:43,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-12-08 19:06:43,206 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 23 [2018-12-08 19:06:43,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:06:43,206 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-12-08 19:06:43,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 19:06:43,206 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-12-08 19:06:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 19:06:43,206 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:06:43,206 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:06:43,207 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:06:43,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:06:43,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1189901543, now seen corresponding path program 1 times [2018-12-08 19:06:43,207 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:06:43,207 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-08 19:06:43,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:06:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:06:43,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:06:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:06:43,548 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:06:43,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:06:43,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 19:06:43,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 19:06:43,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 19:06:43,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 19:06:43,559 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 6 states. [2018-12-08 19:06:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:06:48,945 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2018-12-08 19:06:48,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 19:06:48,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-12-08 19:06:48,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:06:48,947 INFO L225 Difference]: With dead ends: 37 [2018-12-08 19:06:48,947 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 19:06:48,948 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 19:06:48,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 19:06:48,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 19:06:48,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 19:06:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 19:06:48,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-08 19:06:48,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:06:48,948 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 19:06:48,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 19:06:48,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 19:06:48,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 19:06:48,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 19:06:49,216 INFO L451 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 137) the Hoare annotation is: true [2018-12-08 19:06:49,216 INFO L448 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 137) no Hoare annotation was computed. [2018-12-08 19:06:49,216 INFO L448 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 137) no Hoare annotation was computed. [2018-12-08 19:06:49,216 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:06:49,216 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:06:49,216 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:06:49,216 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 92) no Hoare annotation was computed. [2018-12-08 19:06:49,216 INFO L448 ceAbstractionStarter]: For program point __ieee754_logEXIT(lines 45 124) no Hoare annotation was computed. [2018-12-08 19:06:49,216 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L444 ceAbstractionStarter]: At program point L65-2(lines 65 69) the Hoare annotation is: (or (and (exists ((v_prenex_7 (_ BitVec 64))) (and (= __ieee754_log_~hx~1 ((_ extract 63 32) v_prenex_7)) (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7))))) (exists ((v_prenex_9 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_9) ((_ extract 62 52) v_prenex_9) ((_ extract 51 0) v_prenex_9))) (not (bvslt ((_ extract 63 32) v_prenex_9) (_ bv0 32)))))) (not (= (_ +zero 11 53) ~zero~0))) [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L94(lines 94 99) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 62) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 122) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 91) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 123) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 70) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L58-1(lines 45 124) no Hoare annotation was computed. [2018-12-08 19:06:49,217 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 55) no Hoare annotation was computed. [2018-12-08 19:06:49,218 INFO L444 ceAbstractionStarter]: At program point L50-2(lines 50 55) the Hoare annotation is: (or (= __ieee754_log_~x |__ieee754_log_#in~x|) (not (= (_ +zero 11 53) ~zero~0))) [2018-12-08 19:06:49,218 INFO L448 ceAbstractionStarter]: For program point L50-3(lines 50 55) no Hoare annotation was computed. [2018-12-08 19:06:49,218 INFO L451 ceAbstractionStarter]: At program point __ieee754_logENTRY(lines 45 124) the Hoare annotation is: true [2018-12-08 19:06:49,218 INFO L448 ceAbstractionStarter]: For program point __ieee754_logFINAL(lines 45 124) no Hoare annotation was computed. [2018-12-08 19:06:49,218 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 60) no Hoare annotation was computed. [2018-12-08 19:06:49,218 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 100) no Hoare annotation was computed. [2018-12-08 19:06:49,218 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 117) no Hoare annotation was computed. [2018-12-08 19:06:49,218 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 81) no Hoare annotation was computed. [2018-12-08 19:06:49,218 INFO L444 ceAbstractionStarter]: At program point L76-2(lines 76 81) the Hoare annotation is: (or (exists ((v_prenex_9 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_9) ((_ extract 62 52) v_prenex_9) ((_ extract 51 0) v_prenex_9))) (not (bvslt ((_ extract 63 32) v_prenex_9) (_ bv0 32))))) (not (= (_ +zero 11 53) ~zero~0))) [2018-12-08 19:06:49,219 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 81) no Hoare annotation was computed. [2018-12-08 19:06:49,219 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:06:49,219 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= (_ +zero 11 53) ~zero~0) [2018-12-08 19:06:49,219 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:06:49,219 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:06:49,219 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 139 156) the Hoare annotation is: true [2018-12-08 19:06:49,219 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 139 156) no Hoare annotation was computed. [2018-12-08 19:06:49,219 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2018-12-08 19:06:49,219 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 139 156) no Hoare annotation was computed. [2018-12-08 19:06:49,219 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-08 19:06:49,220 INFO L444 ceAbstractionStarter]: At program point L150(line 150) the Hoare annotation is: (or (not (= (_ +zero 11 53) ~zero~0)) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (and (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) (_ +zero 11 53)) main_~res~0) (= .cse0 main_~x~0)))) [2018-12-08 19:06:49,220 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 150 153) no Hoare annotation was computed. [2018-12-08 19:06:49,220 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (or (not (= (_ +zero 11 53) ~zero~0)) (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0)) [2018-12-08 19:06:49,220 INFO L448 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-12-08 19:06:49,224 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,224 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,224 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,225 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,229 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,230 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,230 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,230 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,231 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,231 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,231 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,231 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,231 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,232 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,232 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,232 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,232 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,232 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,233 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,233 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,233 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:06:49 BoogieIcfgContainer [2018-12-08 19:06:49,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:06:49,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:06:49,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:06:49,235 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:06:49,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:06:10" (3/4) ... [2018-12-08 19:06:49,238 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 19:06:49,242 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-12-08 19:06:49,242 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 19:06:49,242 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log [2018-12-08 19:06:49,242 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 19:06:49,246 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-12-08 19:06:49,246 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-08 19:06:49,246 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 19:06:49,246 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 19:06:49,262 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~Pluszero~LONGDOUBLE() == zero) [2018-12-08 19:06:49,262 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_prenex_7 : bv64 :: hx == v_prenex_7[63:32] && \old(x) == ~fp~LONGDOUBLE(v_prenex_7[63:63], v_prenex_7[62:52], v_prenex_7[51:0])) && (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32))) || !(~Pluszero~LONGDOUBLE() == zero) [2018-12-08 19:06:49,262 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32)) || !(~Pluszero~LONGDOUBLE() == zero) [2018-12-08 19:06:49,277 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b0f31de7-d81d-4878-9a01-cff8876d279e/bin-2019/utaipan/witness.graphml [2018-12-08 19:06:49,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:06:49,278 INFO L168 Benchmark]: Toolchain (without parser) took 61792.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 897.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 183.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:06:49,278 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:06:49,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.98 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:06:49,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.50 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:06:49,279 INFO L168 Benchmark]: Boogie Preprocessor took 51.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-08 19:06:49,279 INFO L168 Benchmark]: RCFGBuilder took 22888.32 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-08 19:06:49,280 INFO L168 Benchmark]: TraceAbstraction took 38611.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.5 MB in the end (delta: 193.7 MB). Peak memory consumption was 193.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:06:49,280 INFO L168 Benchmark]: Witness Printer took 42.42 ms. Allocated memory is still 1.2 GB. Free memory is still 897.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:06:49,281 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.98 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 16.50 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 22888.32 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 38611.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.5 MB in the end (delta: 193.7 MB). Peak memory consumption was 193.7 MB. Max. memory is 11.5 GB. * Witness Printer took 42.42 ms. Allocated memory is still 1.2 GB. Free memory is still 897.5 MB. There was no memory consumed. 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[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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 [2018-12-08 19:06:49,284 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,284 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,285 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,285 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,285 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,285 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,285 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,285 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] Derived loop invariant: (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32)) || !(~Pluszero~LONGDOUBLE() == zero) - InvariantResult [Line: 65]: Loop Invariant [2018-12-08 19:06:49,286 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,286 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,286 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,286 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,286 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,287 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,287 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,287 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,287 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,287 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,287 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,288 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_7,QUANTIFIED] [2018-12-08 19:06:49,288 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,288 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,288 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-12-08 19:06:49,288 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] Derived loop invariant: ((\exists v_prenex_7 : bv64 :: hx == v_prenex_7[63:32] && \old(x) == ~fp~LONGDOUBLE(v_prenex_7[63:63], v_prenex_7[62:52], v_prenex_7[51:0])) && (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32))) || !(~Pluszero~LONGDOUBLE() == zero) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: x == \old(x) || !(~Pluszero~LONGDOUBLE() == zero) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 38.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 32.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 191 SDtfs, 113 SDslu, 534 SDs, 0 SdLazy, 187 SolverSat, 13 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 24.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 20 NumberOfFragments, 124 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 89 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 109 ConstructedInterpolants, 22 QuantifiedInterpolants, 13921 SizeOfPredicates, 15 NumberOfNonLiveVariables, 477 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...