./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/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 4dddb731074a9a249891d6adbc7c778d25efe28d ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/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 4dddb731074a9a249891d6adbc7c778d25efe28d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 06:53:38,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 06:53:38,465 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 06:53:38,471 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 06:53:38,471 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 06:53:38,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 06:53:38,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 06:53:38,473 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 06:53:38,473 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 06:53:38,474 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 06:53:38,474 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 06:53:38,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 06:53:38,475 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 06:53:38,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 06:53:38,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 06:53:38,476 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 06:53:38,477 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 06:53:38,478 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 06:53:38,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 06:53:38,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 06:53:38,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 06:53:38,480 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 06:53:38,481 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 06:53:38,481 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 06:53:38,482 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 06:53:38,482 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 06:53:38,482 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 06:53:38,483 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 06:53:38,483 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 06:53:38,484 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 06:53:38,484 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 06:53:38,484 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 06:53:38,484 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 06:53:38,484 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 06:53:38,485 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 06:53:38,485 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 06:53:38,485 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 06:53:38,493 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 06:53:38,493 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 06:53:38,493 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 06:53:38,493 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 06:53:38,494 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 06:53:38,494 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 06:53:38,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 06:53:38,495 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 06:53:38,496 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 06:53:38,496 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 06:53:38,496 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 06:53:38,497 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 06:53:38,497 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 06:53:38,497 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 06:53:38,497 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_f3f41b77-6c41-45a8-a233-e146b344ac2a/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-09 06:53:38,514 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 06:53:38,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 06:53:38,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 06:53:38,526 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 06:53:38,527 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 06:53:38,527 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-09 06:53:38,564 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/c34e1f4d3/d08a650c69384f7d94f441a1c3890bd2/FLAG34ab1886f [2018-12-09 06:53:38,868 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 06:53:38,869 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-09 06:53:38,874 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/c34e1f4d3/d08a650c69384f7d94f441a1c3890bd2/FLAG34ab1886f [2018-12-09 06:53:38,883 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/c34e1f4d3/d08a650c69384f7d94f441a1c3890bd2 [2018-12-09 06:53:38,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 06:53:38,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 06:53:38,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 06:53:38,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 06:53:38,888 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 06:53:38,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:53:38" (1/1) ... [2018-12-09 06:53:38,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282d141b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:38, skipping insertion in model container [2018-12-09 06:53:38,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:53:38" (1/1) ... [2018-12-09 06:53:38,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 06:53:38,909 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 06:53:39,023 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:53:39,026 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 06:53:39,054 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:53:39,100 INFO L195 MainTranslator]: Completed translation [2018-12-09 06:53:39,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39 WrapperNode [2018-12-09 06:53:39,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 06:53:39,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 06:53:39,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 06:53:39,101 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 06:53:39,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 06:53:39,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 06:53:39,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 06:53:39,121 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 06:53:39,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... [2018-12-09 06:53:39,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 06:53:39,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 06:53:39,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 06:53:39,151 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 06:53:39,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 06:53:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 06:53:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 06:53:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-09 06:53:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-09 06:53:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 06:53:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 06:53:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 06:53:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 06:53:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 06:53:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 06:53:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 06:53:39,410 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 06:53:39,410 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 06:53:39,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:53:39 BoogieIcfgContainer [2018-12-09 06:53:39,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 06:53:39,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 06:53:39,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 06:53:39,413 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 06:53:39,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:53:38" (1/3) ... [2018-12-09 06:53:39,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca35e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:53:39, skipping insertion in model container [2018-12-09 06:53:39,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:39" (2/3) ... [2018-12-09 06:53:39,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca35e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:53:39, skipping insertion in model container [2018-12-09 06:53:39,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:53:39" (3/3) ... [2018-12-09 06:53:39,415 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-09 06:53:39,421 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 06:53:39,425 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 06:53:39,434 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 06:53:39,458 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 06:53:39,458 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 06:53:39,458 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 06:53:39,458 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 06:53:39,458 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 06:53:39,458 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 06:53:39,458 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 06:53:39,458 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 06:53:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-12-09 06:53:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 06:53:39,473 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:53:39,473 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 06:53:39,475 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:53:39,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:53:39,479 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-12-09 06:53:39,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 06:53:39,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:53:39,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:53:39,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:53:39,509 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 06:53:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:53:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:53:39,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:53:39,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 06:53:39,579 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 06:53:39,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 06:53:39,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 06:53:39,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 06:53:39,591 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-12-09 06:53:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:53:39,608 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-12-09 06:53:39,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 06:53:39,608 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 06:53:39,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:53:39,614 INFO L225 Difference]: With dead ends: 144 [2018-12-09 06:53:39,614 INFO L226 Difference]: Without dead ends: 72 [2018-12-09 06:53:39,616 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 06:53:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-12-09 06:53:39,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-12-09 06:53:39,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-09 06:53:39,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-12-09 06:53:39,640 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-12-09 06:53:39,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:53:39,641 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-12-09 06:53:39,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 06:53:39,641 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-12-09 06:53:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 06:53:39,641 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:53:39,641 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 06:53:39,641 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:53:39,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:53:39,642 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-12-09 06:53:39,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 06:53:39,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:53:39,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:53:39,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:53:39,643 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 06:53:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:53:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:53:39,692 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 06:53:39,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:53:39 BoogieIcfgContainer [2018-12-09 06:53:39,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 06:53:39,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 06:53:39,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 06:53:39,714 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 06:53:39,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:53:39" (3/4) ... [2018-12-09 06:53:39,717 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 06:53:39,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 06:53:39,717 INFO L168 Benchmark]: Toolchain (without parser) took 832.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 956.7 MB in the beginning and 1.0 GB in the end (delta: -49.0 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. [2018-12-09 06:53:39,718 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:53:39,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-12-09 06:53:39,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-09 06:53:39,719 INFO L168 Benchmark]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:53:39,719 INFO L168 Benchmark]: RCFGBuilder took 259.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-12-09 06:53:39,720 INFO L168 Benchmark]: TraceAbstraction took 303.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-09 06:53:39,720 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:53:39,722 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 259.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 303.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450968, \old(huge_floor)=6442450957, \old(one_asin)=6442450960, \old(one_sqrt)=6442450958, \old(pio2_hi_asin)=6442450959, \old(pio2_lo_asin)=6442450952, \old(pio4_hi_asin)=6442450961, \old(pS0_asin)=6442450966, \old(pS1_asin)=6442450962, \old(pS2_asin)=6442450946, \old(pS3_asin)=6442450965, \old(pS4_asin)=6442450954, \old(pS5_asin)=6442450951, \old(qS1_asin)=6442450969, \old(qS2_asin)=6442450955, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450967, \old(tiny_sqrt)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = -1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L232] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 06:53:41,066 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 06:53:41,067 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 06:53:41,073 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 06:53:41,073 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 06:53:41,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 06:53:41,074 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 06:53:41,075 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 06:53:41,075 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 06:53:41,076 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 06:53:41,076 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 06:53:41,076 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 06:53:41,077 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 06:53:41,077 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 06:53:41,078 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 06:53:41,078 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 06:53:41,079 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 06:53:41,079 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 06:53:41,080 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 06:53:41,081 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 06:53:41,082 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 06:53:41,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 06:53:41,083 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 06:53:41,084 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 06:53:41,084 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 06:53:41,084 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 06:53:41,085 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 06:53:41,085 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 06:53:41,085 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 06:53:41,086 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 06:53:41,086 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 06:53:41,086 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 06:53:41,087 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 06:53:41,087 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 06:53:41,087 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 06:53:41,088 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 06:53:41,088 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 06:53:41,095 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 06:53:41,095 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 06:53:41,096 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 06:53:41,096 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 06:53:41,096 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 06:53:41,096 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 06:53:41,096 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 06:53:41,096 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 06:53:41,096 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 06:53:41,096 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 06:53:41,097 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 06:53:41,097 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 06:53:41,098 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 06:53:41,098 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 06:53:41,098 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 06:53:41,099 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 06:53:41,099 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 06:53:41,099 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 06:53:41,099 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 06:53:41,099 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 06:53:41,099 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_f3f41b77-6c41-45a8-a233-e146b344ac2a/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-09 06:53:41,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 06:53:41,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 06:53:41,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 06:53:41,130 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 06:53:41,131 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 06:53:41,131 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-09 06:53:41,168 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/70db481f7/8123edbed14b4e2aa5abc0cffc22fdbf/FLAG85d6635cd [2018-12-09 06:53:41,558 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 06:53:41,559 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-09 06:53:41,563 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/70db481f7/8123edbed14b4e2aa5abc0cffc22fdbf/FLAG85d6635cd [2018-12-09 06:53:41,571 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/data/70db481f7/8123edbed14b4e2aa5abc0cffc22fdbf [2018-12-09 06:53:41,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 06:53:41,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 06:53:41,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 06:53:41,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 06:53:41,576 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 06:53:41,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12c072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41, skipping insertion in model container [2018-12-09 06:53:41,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 06:53:41,597 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 06:53:41,718 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:53:41,722 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 06:53:41,755 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:53:41,770 INFO L195 MainTranslator]: Completed translation [2018-12-09 06:53:41,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41 WrapperNode [2018-12-09 06:53:41,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 06:53:41,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 06:53:41,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 06:53:41,772 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 06:53:41,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 06:53:41,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 06:53:41,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 06:53:41,789 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 06:53:41,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... [2018-12-09 06:53:41,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 06:53:41,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 06:53:41,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 06:53:41,850 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 06:53:41,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 06:53:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 06:53:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 06:53:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-09 06:53:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-09 06:53:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 06:53:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 06:53:41,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 06:53:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 06:53:41,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 06:53:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 06:53:41,884 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 06:53:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 06:53:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 06:53:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 06:53:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 06:53:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 06:53:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 06:53:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 06:53:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 06:53:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 06:53:42,023 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 06:53:50,279 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 06:53:50,313 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 06:53:50,750 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 06:53:50,755 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 06:53:50,755 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 06:53:50,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:53:50 BoogieIcfgContainer [2018-12-09 06:53:50,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 06:53:50,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 06:53:50,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 06:53:50,758 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 06:53:50,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:53:41" (1/3) ... [2018-12-09 06:53:50,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:53:50, skipping insertion in model container [2018-12-09 06:53:50,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:53:41" (2/3) ... [2018-12-09 06:53:50,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:53:50, skipping insertion in model container [2018-12-09 06:53:50,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:53:50" (3/3) ... [2018-12-09 06:53:50,760 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-09 06:53:50,765 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 06:53:50,769 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 06:53:50,779 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 06:53:50,796 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 06:53:50,796 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 06:53:50,796 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 06:53:50,796 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 06:53:50,797 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 06:53:50,797 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 06:53:50,797 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 06:53:50,797 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 06:53:50,797 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 06:53:50,807 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-12-09 06:53:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 06:53:50,810 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:53:50,811 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 06:53:50,812 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:53:50,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:53:50,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-12-09 06:53:50,818 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:53:50,818 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 06:53:50,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:53:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:53:50,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:53:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:53:51,005 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:53:51,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:53:51,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 06:53:51,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 06:53:51,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 06:53:51,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 06:53:51,026 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-12-09 06:53:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:53:51,043 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-12-09 06:53:51,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 06:53:51,044 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-09 06:53:51,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:53:51,050 INFO L225 Difference]: With dead ends: 142 [2018-12-09 06:53:51,050 INFO L226 Difference]: Without dead ends: 71 [2018-12-09 06:53:51,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 06:53:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-09 06:53:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-12-09 06:53:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 06:53:51,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-12-09 06:53:51,078 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-12-09 06:53:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:53:51,079 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-12-09 06:53:51,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 06:53:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-12-09 06:53:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 06:53:51,079 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:53:51,079 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 06:53:51,080 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:53:51,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:53:51,080 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-12-09 06:53:51,080 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:53:51,080 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 06:53:51,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:53:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:53:51,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:53:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:53:51,326 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:53:51,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:53:51,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 06:53:51,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 06:53:51,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 06:53:51,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 06:53:51,336 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-12-09 06:53:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:53:57,643 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-12-09 06:53:57,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 06:53:57,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-09 06:53:57,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:53:57,646 INFO L225 Difference]: With dead ends: 84 [2018-12-09 06:53:57,646 INFO L226 Difference]: Without dead ends: 74 [2018-12-09 06:53:57,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 06:53:57,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-09 06:53:57,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-12-09 06:53:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 06:53:57,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-12-09 06:53:57,653 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-12-09 06:53:57,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:53:57,653 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-12-09 06:53:57,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 06:53:57,653 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-12-09 06:53:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 06:53:57,654 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:53:57,654 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 06:53:57,654 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:53:57,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:53:57,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-12-09 06:53:57,655 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:53:57,655 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 06:53:57,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:53:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:53:57,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:53:59,876 WARN L180 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-09 06:54:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:54:01,645 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:54:01,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:54:01,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 06:54:01,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 06:54:01,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 06:54:01,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 06:54:01,655 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-12-09 06:54:04,756 WARN L180 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 06:54:11,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:54:11,486 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-12-09 06:54:11,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 06:54:11,487 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 06:54:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:54:11,488 INFO L225 Difference]: With dead ends: 80 [2018-12-09 06:54:11,488 INFO L226 Difference]: Without dead ends: 73 [2018-12-09 06:54:11,488 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 06:54:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-09 06:54:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-12-09 06:54:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 06:54:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-12-09 06:54:11,495 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-12-09 06:54:11,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:54:11,496 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-12-09 06:54:11,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 06:54:11,496 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-12-09 06:54:11,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 06:54:11,496 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:54:11,496 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 06:54:11,496 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:54:11,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:54:11,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-12-09 06:54:11,497 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:54:11,497 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 06:54:11,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:54:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:54:12,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:54:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:54:12,527 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:54:12,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:54:12,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 06:54:12,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 06:54:12,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 06:54:12,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 06:54:12,545 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-12-09 06:54:17,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:54:17,510 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2018-12-09 06:54:17,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 06:54:17,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-09 06:54:17,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:54:17,511 INFO L225 Difference]: With dead ends: 84 [2018-12-09 06:54:17,511 INFO L226 Difference]: Without dead ends: 66 [2018-12-09 06:54:17,512 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 06:54:17,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-09 06:54:17,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-12-09 06:54:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-09 06:54:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2018-12-09 06:54:17,516 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2018-12-09 06:54:17,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:54:17,516 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2018-12-09 06:54:17,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 06:54:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2018-12-09 06:54:17,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 06:54:17,517 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:54:17,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 06:54:17,517 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:54:17,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:54:17,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1429916512, now seen corresponding path program 1 times [2018-12-09 06:54:17,518 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:54:17,518 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 06:54:17,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:54:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:54:18,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:54:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:54:18,695 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:54:18,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:54:18,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 06:54:18,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 06:54:18,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 06:54:18,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 06:54:18,714 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2018-12-09 06:54:21,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:54:21,183 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-12-09 06:54:21,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 06:54:21,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-12-09 06:54:21,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:54:21,185 INFO L225 Difference]: With dead ends: 66 [2018-12-09 06:54:21,185 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 06:54:21,185 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 06:54:21,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 06:54:21,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 06:54:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 06:54:21,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 06:54:21,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-12-09 06:54:21,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:54:21,186 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 06:54:21,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 06:54:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 06:54:21,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 06:54:21,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 06:54:21,397 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L451 ceAbstractionStarter]: At program point L130-2(lines 130 134) the Hoare annotation is: true [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-12-09 06:54:21,398 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 128 141) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point L135-2(lines 135 139) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 06:54:21,399 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-12-09 06:54:21,399 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-12-09 06:54:21,399 INFO L448 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L444 ceAbstractionStarter]: At program point L156-2(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-12-09 06:54:21,400 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L444 ceAbstractionStarter]: At program point L199-2(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 196 214) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point L204-2(lines 204 208) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L444 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-09 06:54:21,401 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-12-09 06:54:21,401 INFO L451 ceAbstractionStarter]: At program point L98-2(lines 98 107) the Hoare annotation is: true [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L98-3(lines 62 127) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L448 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-12-09 06:54:21,402 INFO L451 ceAbstractionStarter]: At program point L67-2(lines 67 71) the Hoare annotation is: true [2018-12-09 06:54:21,403 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 71) no Hoare annotation was computed. [2018-12-09 06:54:21,403 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-12-09 06:54:21,403 INFO L451 ceAbstractionStarter]: At program point L121-2(lines 121 125) the Hoare annotation is: true [2018-12-09 06:54:21,403 INFO L448 ceAbstractionStarter]: For program point L121-3(lines 121 125) no Hoare annotation was computed. [2018-12-09 06:54:21,403 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 84 85) no Hoare annotation was computed. [2018-12-09 06:54:21,403 INFO L451 ceAbstractionStarter]: At program point L84-3(lines 84 85) the Hoare annotation is: true [2018-12-09 06:54:21,403 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-12-09 06:54:21,403 INFO L448 ceAbstractionStarter]: For program point L84-4(lines 84 85) no Hoare annotation was computed. [2018-12-09 06:54:21,403 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-12-09 06:54:21,407 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,408 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,408 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,408 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,408 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,408 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,409 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,409 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,412 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,412 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,412 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,412 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,412 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,413 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,413 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,413 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:54:21 BoogieIcfgContainer [2018-12-09 06:54:21,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 06:54:21,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 06:54:21,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 06:54:21,415 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 06:54:21,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:53:50" (3/4) ... [2018-12-09 06:54:21,417 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 06:54:21,421 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 06:54:21,421 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 06:54:21,421 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-09 06:54:21,421 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 06:54:21,421 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-12-09 06:54:21,421 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-09 06:54:21,424 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-12-09 06:54:21,425 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-09 06:54:21,425 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 06:54:21,425 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 06:54:21,440 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 06:54:21,441 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-12-09 06:54:21,458 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f3f41b77-6c41-45a8-a233-e146b344ac2a/bin-2019/utaipan/witness.graphml [2018-12-09 06:54:21,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 06:54:21,459 INFO L168 Benchmark]: Toolchain (without parser) took 39885.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 943.4 MB in the beginning and 833.9 MB in the end (delta: 109.5 MB). Peak memory consumption was 214.9 MB. Max. memory is 11.5 GB. [2018-12-09 06:54:21,459 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:54:21,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.65 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-09 06:54:21,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 921.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:54:21,460 INFO L168 Benchmark]: Boogie Preprocessor took 60.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-12-09 06:54:21,460 INFO L168 Benchmark]: RCFGBuilder took 8905.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2018-12-09 06:54:21,460 INFO L168 Benchmark]: TraceAbstraction took 30658.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 840.8 MB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 11.5 GB. [2018-12-09 06:54:21,460 INFO L168 Benchmark]: Witness Printer took 43.69 ms. Allocated memory is still 1.1 GB. Free memory was 840.8 MB in the beginning and 833.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 06:54:21,461 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.65 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 921.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8905.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 30658.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 840.8 MB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 11.5 GB. * Witness Printer took 43.69 ms. Allocated memory is still 1.1 GB. Free memory was 840.8 MB in the beginning and 833.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-12-09 06:54:21,463 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,463 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,463 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,464 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,465 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,465 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,465 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 06:54:21,465 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 30.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 23.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 198 SDslu, 1429 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 209 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19548 SizeOfPredicates, 16 NumberOfNonLiveVariables, 606 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...