./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 8314f0a25d0cae1024b24eed74020923c3a8036e ........................................................................................................................................................................................................................................................................................................................................................................................... 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_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 8314f0a25d0cae1024b24eed74020923c3a8036e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:11:07,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:11:07,494 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:11:07,503 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:11:07,503 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:11:07,504 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:11:07,504 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:11:07,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:11:07,507 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:11:07,507 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:11:07,508 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:11:07,508 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:11:07,509 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:11:07,509 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:11:07,510 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:11:07,510 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:11:07,511 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:11:07,512 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:11:07,514 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:11:07,515 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:11:07,515 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:11:07,516 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:11:07,518 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:11:07,518 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:11:07,518 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:11:07,519 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:11:07,520 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:11:07,521 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:11:07,521 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:11:07,522 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:11:07,522 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:11:07,523 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:11:07,523 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:11:07,523 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:11:07,524 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:11:07,524 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:11:07,525 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:11:07,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:11:07,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:11:07,536 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:11:07,536 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:11:07,536 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:11:07,537 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:11:07,537 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:11:07,537 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:11:07,537 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:11:07,537 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:11:07,537 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:11:07,538 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:11:07,538 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:11:07,538 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:11:07,538 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:11:07,538 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:11:07,539 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:11:07,539 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:11:07,539 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:11:07,539 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:11:07,539 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:11:07,539 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:11:07,540 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:11:07,540 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:11:07,540 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:11:07,540 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:11:07,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:11:07,540 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:11:07,541 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:11:07,541 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:11:07,541 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:11:07,541 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:11:07,541 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:11:07,541 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:11:07,541 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_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2018-11-10 05:11:07,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:11:07,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:11:07,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:11:07,580 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:11:07,581 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:11:07,581 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-10 05:11:07,624 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/a037e0b1c/4a5d7a4cf8b844fd9dc63b33008a4a70/FLAG76fbb7738 [2018-11-10 05:11:08,019 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:11:08,019 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-10 05:11:08,024 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/a037e0b1c/4a5d7a4cf8b844fd9dc63b33008a4a70/FLAG76fbb7738 [2018-11-10 05:11:08,035 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/a037e0b1c/4a5d7a4cf8b844fd9dc63b33008a4a70 [2018-11-10 05:11:08,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:11:08,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:11:08,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:11:08,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:11:08,041 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:11:08,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1788b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08, skipping insertion in model container [2018-11-10 05:11:08,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:11:08,062 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:11:08,168 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:11:08,170 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:11:08,188 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:11:08,201 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:11:08,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08 WrapperNode [2018-11-10 05:11:08,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:11:08,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:11:08,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:11:08,202 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:11:08,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:11:08,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:11:08,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:11:08,228 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:11:08,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... [2018-11-10 05:11:08,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:11:08,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:11:08,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:11:08,299 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:11:08,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 [2018-11-10 05:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:11:08,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:11:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-10 05:11:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-10 05:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:11:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 05:11:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 05:11:08,603 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:11:08,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:11:08 BoogieIcfgContainer [2018-11-10 05:11:08,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:11:08,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:11:08,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:11:08,606 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:11:08,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:11:08" (1/3) ... [2018-11-10 05:11:08,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5ef9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:11:08, skipping insertion in model container [2018-11-10 05:11:08,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:08" (2/3) ... [2018-11-10 05:11:08,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5ef9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:11:08, skipping insertion in model container [2018-11-10 05:11:08,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:11:08" (3/3) ... [2018-11-10 05:11:08,608 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d_true-unreach-call.c [2018-11-10 05:11:08,614 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:11:08,618 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:11:08,630 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:11:08,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:11:08,652 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:11:08,652 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:11:08,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:11:08,652 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:11:08,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:11:08,652 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:11:08,652 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:11:08,662 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 05:11:08,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 05:11:08,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:08,666 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:11:08,667 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:08,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-11-10 05:11:08,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:11:08,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:11:08,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:08,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:11:08,702 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:11:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:08,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:08,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:11:08,751 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:11:08,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:11:08,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:11:08,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:11:08,768 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-10 05:11:08,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:08,782 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-10 05:11:08,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:11:08,783 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 05:11:08,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:08,788 INFO L225 Difference]: With dead ends: 78 [2018-11-10 05:11:08,788 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 05:11:08,790 INFO L605 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 [2018-11-10 05:11:08,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 05:11:08,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-10 05:11:08,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 05:11:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-10 05:11:08,812 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-10 05:11:08,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:08,812 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-10 05:11:08,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:11:08,812 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-10 05:11:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 05:11:08,813 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:08,813 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:11:08,813 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:08,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:08,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-11-10 05:11:08,814 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:11:08,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:11:08,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:08,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:11:08,815 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:11:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:11:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:11:08,890 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:11:08,899 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,899 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,900 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,900 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,900 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,900 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,900 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,900 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,901 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,901 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,901 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,901 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,901 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,903 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,903 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:11:08,903 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:11:08,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:11:08 BoogieIcfgContainer [2018-11-10 05:11:08,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:11:08,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:11:08,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:11:08,914 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:11:08,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:11:08" (3/4) ... [2018-11-10 05:11:08,918 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 05:11:08,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:11:08,918 INFO L168 Benchmark]: Toolchain (without parser) took 880.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -109.0 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:08,920 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:11:08,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.34 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:08,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.69 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:08,921 INFO L168 Benchmark]: Boogie Preprocessor took 70.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:08,922 INFO L168 Benchmark]: RCFGBuilder took 304.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:08,922 INFO L168 Benchmark]: TraceAbstraction took 309.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:08,923 INFO L168 Benchmark]: Witness Printer took 3.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:11:08,926 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.34 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.69 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 304.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 309.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450947, huge_floor=1000000000000000000000000000000] [L75] float x = 0.0f; VAL [huge_floor=1000000000000000000000000000000, x=0] [L76] CALL, EXPR floor_float(x) VAL [huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_floor=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] RET return x; VAL [huge_floor=1000000000000000000000000000000] [L76] EXPR floor_float(x) VAL [floor_float(x)=0, huge_floor=1000000000000000000000000000000, x=0] [L76] float res = floor_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_floor=1000000000000000000000000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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 0.1.23-1dbac8b [2018-11-10 05:11:10,322 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:11:10,323 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:11:10,332 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:11:10,332 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:11:10,333 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:11:10,333 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:11:10,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:11:10,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:11:10,336 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:11:10,337 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:11:10,337 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:11:10,338 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:11:10,339 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:11:10,340 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:11:10,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:11:10,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:11:10,342 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:11:10,344 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:11:10,345 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:11:10,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:11:10,347 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:11:10,349 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:11:10,349 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:11:10,349 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:11:10,350 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:11:10,350 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:11:10,351 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:11:10,352 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:11:10,353 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:11:10,353 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:11:10,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:11:10,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:11:10,354 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:11:10,354 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:11:10,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:11:10,355 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 05:11:10,366 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:11:10,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:11:10,367 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:11:10,367 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:11:10,367 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:11:10,367 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:11:10,367 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:11:10,368 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:11:10,368 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:11:10,368 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:11:10,368 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:11:10,368 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:11:10,369 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:11:10,369 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:11:10,369 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:11:10,369 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 05:11:10,369 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 05:11:10,369 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:11:10,369 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:11:10,370 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:11:10,370 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:11:10,370 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:11:10,370 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:11:10,370 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:11:10,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:11:10,370 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:11:10,371 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:11:10,371 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:11:10,371 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 05:11:10,371 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:11:10,371 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 05:11:10,374 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 05:11:10,374 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_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2018-11-10 05:11:10,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:11:10,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:11:10,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:11:10,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:11:10,418 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:11:10,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-10 05:11:10,463 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/0a59be6c1/4588968ec57b414c872f0fb995eae4c1/FLAG8a636ac3c [2018-11-10 05:11:10,780 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:11:10,780 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-10 05:11:10,784 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/0a59be6c1/4588968ec57b414c872f0fb995eae4c1/FLAG8a636ac3c [2018-11-10 05:11:10,792 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/data/0a59be6c1/4588968ec57b414c872f0fb995eae4c1 [2018-11-10 05:11:10,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:11:10,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:11:10,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:11:10,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:11:10,799 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:11:10,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:10,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae91e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10, skipping insertion in model container [2018-11-10 05:11:10,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:10,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:11:10,821 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:11:10,939 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:11:10,943 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:11:10,965 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:11:10,985 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:11:10,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10 WrapperNode [2018-11-10 05:11:10,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:11:10,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:11:10,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:11:10,986 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:11:10,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:11:11,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:11:11,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:11:11,016 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:11:11,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... [2018-11-10 05:11:11,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:11:11,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:11:11,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:11:11,037 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:11:11,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 [2018-11-10 05:11:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:11:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:11:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:11:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:11:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-10 05:11:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-10 05:11:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:11:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:11:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 05:11:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 05:11:11,247 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 05:11:11,524 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 05:11:11,527 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:11:11,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:11:11 BoogieIcfgContainer [2018-11-10 05:11:11,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:11:11,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:11:11,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:11:11,530 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:11:11,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:11:10" (1/3) ... [2018-11-10 05:11:11,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d869d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:11:11, skipping insertion in model container [2018-11-10 05:11:11,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:11:10" (2/3) ... [2018-11-10 05:11:11,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d869d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:11:11, skipping insertion in model container [2018-11-10 05:11:11,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:11:11" (3/3) ... [2018-11-10 05:11:11,533 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d_true-unreach-call.c [2018-11-10 05:11:11,541 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:11:11,546 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:11:11,557 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:11:11,575 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:11:11,575 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:11:11,575 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:11:11,575 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:11:11,575 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:11:11,575 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:11:11,575 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:11:11,575 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:11:11,576 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:11:11,586 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 05:11:11,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 05:11:11,590 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:11,591 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:11:11,593 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:11,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:11,597 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-11-10 05:11:11,599 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:11:11,599 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 [2018-11-10 05:11:11,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:11,644 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:11:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:11,655 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:11:11,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:11,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:11:11,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:11:11,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:11:11,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:11:11,676 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-10 05:11:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:11,691 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-10 05:11:11,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:11:11,692 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 05:11:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:11,698 INFO L225 Difference]: With dead ends: 78 [2018-11-10 05:11:11,698 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 05:11:11,700 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:11:11,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 05:11:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-10 05:11:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 05:11:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-10 05:11:11,725 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-10 05:11:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:11,725 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-10 05:11:11,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:11:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-10 05:11:11,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 05:11:11,726 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:11,726 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:11:11,726 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:11,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:11,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-11-10 05:11:11,727 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:11:11,727 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 [2018-11-10 05:11:11,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:11,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:11:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:11,879 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:11:11,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:11,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 05:11:11,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 05:11:11,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 05:11:11,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 05:11:11,892 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-11-10 05:11:12,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:12,726 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-10 05:11:12,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 05:11:12,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 05:11:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:12,729 INFO L225 Difference]: With dead ends: 60 [2018-11-10 05:11:12,729 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 05:11:12,730 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 05:11:12,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 05:11:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-10 05:11:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 05:11:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-10 05:11:12,735 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-11-10 05:11:12,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:12,735 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-10 05:11:12,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 05:11:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-10 05:11:12,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 05:11:12,736 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:12,736 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:11:12,736 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:12,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:12,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1376484092, now seen corresponding path program 1 times [2018-11-10 05:11:12,737 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:11:12,737 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 [2018-11-10 05:11:12,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:12,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:11:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:12,828 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:11:12,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:12,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 05:11:12,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 05:11:12,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 05:11:12,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 05:11:12,836 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-10 05:11:13,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:13,875 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-11-10 05:11:13,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 05:11:13,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-10 05:11:13,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:13,877 INFO L225 Difference]: With dead ends: 67 [2018-11-10 05:11:13,877 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 05:11:13,877 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-10 05:11:13,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 05:11:13,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-10 05:11:13,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 05:11:13,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-10 05:11:13,881 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-10 05:11:13,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:13,882 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-10 05:11:13,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 05:11:13,882 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-10 05:11:13,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 05:11:13,883 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:13,883 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:11:13,883 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:13,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:13,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1666542110, now seen corresponding path program 1 times [2018-11-10 05:11:13,884 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:11:13,884 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 [2018-11-10 05:11:13,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:13,944 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:11:14,702 WARN L179 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-10 05:11:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:14,706 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:11:14,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:14,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 05:11:14,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 05:11:14,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 05:11:14,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 05:11:14,719 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-10 05:11:15,566 WARN L179 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-10 05:11:16,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:16,053 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-10 05:11:16,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 05:11:16,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-10 05:11:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:16,057 INFO L225 Difference]: With dead ends: 52 [2018-11-10 05:11:16,057 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 05:11:16,057 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 05:11:16,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 05:11:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 05:11:16,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 05:11:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-10 05:11:16,060 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-10 05:11:16,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:16,061 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-10 05:11:16,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 05:11:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-10 05:11:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 05:11:16,061 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:16,061 INFO L375 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] [2018-11-10 05:11:16,062 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:16,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:16,062 INFO L82 PathProgramCache]: Analyzing trace with hash 66145073, now seen corresponding path program 1 times [2018-11-10 05:11:16,062 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:11:16,062 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/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 [2018-11-10 05:11:16,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:16,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:11:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:16,163 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:11:16,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:16,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 05:11:16,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 05:11:16,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 05:11:16,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 05:11:16,174 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-11-10 05:11:16,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:16,277 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-10 05:11:16,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 05:11:16,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-10 05:11:16,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:16,278 INFO L225 Difference]: With dead ends: 44 [2018-11-10 05:11:16,279 INFO L226 Difference]: Without dead ends: 41 [2018-11-10 05:11:16,279 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 05:11:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-10 05:11:16,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-10 05:11:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 05:11:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-10 05:11:16,284 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-11-10 05:11:16,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:16,284 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-10 05:11:16,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 05:11:16,284 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-10 05:11:16,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 05:11:16,285 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:16,285 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:11:16,285 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:16,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:16,285 INFO L82 PathProgramCache]: Analyzing trace with hash -173589656, now seen corresponding path program 1 times [2018-11-10 05:11:16,285 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:11:16,285 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 05:11:16,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:16,346 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:11:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:16,387 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:11:16,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:16,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 05:11:16,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 05:11:16,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 05:11:16,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 05:11:16,396 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-11-10 05:11:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:16,617 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-11-10 05:11:16,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 05:11:16,617 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-10 05:11:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:16,618 INFO L225 Difference]: With dead ends: 57 [2018-11-10 05:11:16,618 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 05:11:16,618 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-10 05:11:16,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 05:11:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 05:11:16,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 05:11:16,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-10 05:11:16,621 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-11-10 05:11:16,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:16,621 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-10 05:11:16,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 05:11:16,621 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-10 05:11:16,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 05:11:16,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:11:16,622 INFO L375 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] [2018-11-10 05:11:16,622 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:11:16,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:11:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash -8459046, now seen corresponding path program 1 times [2018-11-10 05:11:16,623 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:11:16,623 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-10 05:11:16,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:11:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:11:16,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:11:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:11:16,827 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:11:16,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:11:16,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-10 05:11:16,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 05:11:16,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 05:11:16,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-10 05:11:16,837 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-11-10 05:11:17,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:11:17,112 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-10 05:11:17,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 05:11:17,112 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-11-10 05:11:17,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:11:17,113 INFO L225 Difference]: With dead ends: 33 [2018-11-10 05:11:17,113 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:11:17,113 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-10 05:11:17,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:11:17,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:11:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:11:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:11:17,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-10 05:11:17,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:11:17,114 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:11:17,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 05:11:17,114 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:11:17,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:11:17,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:11:17,254 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:11:17,254 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:11:17,254 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:11:17,254 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-10 05:11:17,254 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-10 05:11:17,254 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-10 05:11:17,254 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (= |floor_float_#in~x| floor_float_~x) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-10 05:11:17,255 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-10 05:11:17,256 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 05:11:17,256 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-10 05:11:17,256 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-10 05:11:17,256 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-10 05:11:17,256 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-10 05:11:17,256 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:11:17,256 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0) [2018-11-10 05:11:17,256 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:11:17,256 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:11:17,256 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-11-10 05:11:17,257 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-10 05:11:17,257 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-11-10 05:11:17,257 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-10 05:11:17,257 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-10 05:11:17,257 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (or (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) main_~res~0)) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-11-10 05:11:17,257 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-11-10 05:11:17,257 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-11-10 05:11:17,257 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (or (= (_ +zero 8 24) main_~x~0) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-11-10 05:11:17,257 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-10 05:11:17,258 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-11-10 05:11:17,258 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-10 05:11:17,258 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-11-10 05:11:17,258 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-11-10 05:11:17,258 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-10 05:11:17,258 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-11-10 05:11:17,258 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-11-10 05:11:17,263 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,263 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,266 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,266 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,266 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,267 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,267 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,267 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:11:17 BoogieIcfgContainer [2018-11-10 05:11:17,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:11:17,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:11:17,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:11:17,269 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:11:17,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:11:11" (3/4) ... [2018-11-10 05:11:17,272 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:11:17,275 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:11:17,276 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-10 05:11:17,276 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:11:17,276 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 05:11:17,279 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-11-10 05:11:17,280 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 05:11:17,280 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 05:11:17,296 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) [2018-11-10 05:11:17,296 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) || \old(x) == x [2018-11-10 05:11:17,316 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0fb2e81e-f455-4b6b-b79d-907bedb79d51/bin-2019/utaipan/witness.graphml [2018-11-10 05:11:17,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:11:17,317 INFO L168 Benchmark]: Toolchain (without parser) took 6521.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 953.2 MB in the beginning and 845.2 MB in the end (delta: 108.1 MB). Peak memory consumption was 259.1 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:17,317 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-10 05:11:17,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.73 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:17,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.67 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:11:17,318 INFO L168 Benchmark]: Boogie Preprocessor took 21.05 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:11:17,318 INFO L168 Benchmark]: RCFGBuilder took 490.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:17,319 INFO L168 Benchmark]: TraceAbstraction took 5740.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.9 MB in the end (delta: 268.7 MB). Peak memory consumption was 268.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:17,319 INFO L168 Benchmark]: Witness Printer took 47.79 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 845.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:11:17,320 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.73 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.67 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.05 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 490.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5740.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.9 MB in the end (delta: 268.7 MB). Peak memory consumption was 268.7 MB. Max. memory is 11.5 GB. * Witness Printer took 47.79 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 845.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 59]: Loop Invariant [2018-11-10 05:11:17,322 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,323 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,323 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,323 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) || \old(x) == x - InvariantResult [Line: 16]: Loop Invariant [2018-11-10 05:11:17,324 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,324 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,324 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 05:11:17,324 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 5.6s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 226 SDslu, 728 SDs, 0 SdLazy, 330 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 68 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 17 QuantifiedInterpolants, 19826 SizeOfPredicates, 59 NumberOfNonLiveVariables, 608 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...