./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_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_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 43a504f2a78cd97f2f59239768b095c018a8cdcb ............................................................................................................................................................................................................................................................................................................................................................................................ 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_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 43a504f2a78cd97f2f59239768b095c018a8cdcb ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:34:51,951 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:34:51,952 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:34:51,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:34:51,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:34:51,959 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:34:51,960 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:34:51,961 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:34:51,962 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:34:51,963 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:34:51,964 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:34:51,964 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:34:51,964 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:34:51,965 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:34:51,966 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:34:51,966 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:34:51,967 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:34:51,968 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:34:51,969 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:34:51,970 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:34:51,971 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:34:51,972 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:34:51,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:34:51,974 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:34:51,974 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:34:51,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:34:51,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:34:51,976 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:34:51,976 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:34:51,977 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:34:51,977 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:34:51,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:34:51,977 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:34:51,977 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:34:51,978 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:34:51,978 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:34:51,979 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 12:34:51,986 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:34:51,986 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:34:51,986 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:34:51,987 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:34:51,987 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:34:51,987 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:34:51,987 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:34:51,987 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:34:51,987 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:34:51,988 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:34:51,988 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:34:51,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:34:51,989 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:34:51,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:34:51,989 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:34:51,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:34:51,989 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:34:51,989 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:34:51,989 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:34:51,990 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:34:51,990 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:34:51,990 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:34:51,990 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:34:51,990 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:34:51,990 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:34:51,991 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:34:51,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:34:51,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:34:51,991 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:34:51,991 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:34:51,991 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:34:51,991 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:34:51,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:34:51,992 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:34:51,992 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_b8858e19-b754-4564-92ab-5efe95f9e87d/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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb [2018-11-10 12:34:52,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:34:52,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:34:52,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:34:52,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:34:52,025 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:34:52,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-10 12:34:52,060 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/7b0617caf/eda6c37b9d344cbab1992ca67fa38e62/FLAG1c892e24e [2018-11-10 12:34:52,462 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:34:52,462 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-10 12:34:52,468 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/7b0617caf/eda6c37b9d344cbab1992ca67fa38e62/FLAG1c892e24e [2018-11-10 12:34:52,476 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/7b0617caf/eda6c37b9d344cbab1992ca67fa38e62 [2018-11-10 12:34:52,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:34:52,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:34:52,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:34:52,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:34:52,482 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:34:52,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d64a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52, skipping insertion in model container [2018-11-10 12:34:52,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:34:52,508 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:34:52,629 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:34:52,632 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:34:52,662 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:34:52,676 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:34:52,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52 WrapperNode [2018-11-10 12:34:52,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:34:52,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:34:52,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:34:52,677 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:34:52,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:34:52,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:34:52,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:34:52,710 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:34:52,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... [2018-11-10 12:34:52,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:34:52,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:34:52,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:34:52,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:34:52,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 12:34:52,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:34:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:34:52,831 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 12:34:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 12:34:52,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:34:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:34:52,831 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-10 12:34:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-10 12:34:52,832 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-10 12:34:52,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-10 12:34:52,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:34:52,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:34:53,174 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:34:53,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:34:53 BoogieIcfgContainer [2018-11-10 12:34:53,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:34:53,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:34:53,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:34:53,178 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:34:53,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:34:52" (1/3) ... [2018-11-10 12:34:53,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e86a160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:34:53, skipping insertion in model container [2018-11-10 12:34:53,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:52" (2/3) ... [2018-11-10 12:34:53,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e86a160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:34:53, skipping insertion in model container [2018-11-10 12:34:53,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:34:53" (3/3) ... [2018-11-10 12:34:53,181 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-11-10 12:34:53,188 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:34:53,197 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:34:53,210 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:34:53,236 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:34:53,236 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:34:53,236 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:34:53,236 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:34:53,236 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:34:53,237 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:34:53,237 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:34:53,237 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:34:53,251 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-11-10 12:34:53,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 12:34:53,257 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:34:53,257 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] [2018-11-10 12:34:53,259 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:34:53,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:34:53,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1876582166, now seen corresponding path program 1 times [2018-11-10 12:34:53,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:34:53,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:34:53,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:34:53,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:34:53,300 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:34:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:34:53,383 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 12:34:53,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:34:53,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:34:53,385 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:34:53,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:34:53,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:34:53,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:34:53,401 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-11-10 12:34:53,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:34:53,416 INFO L93 Difference]: Finished difference Result 112 states and 167 transitions. [2018-11-10 12:34:53,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:34:53,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 12:34:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:34:53,425 INFO L225 Difference]: With dead ends: 112 [2018-11-10 12:34:53,425 INFO L226 Difference]: Without dead ends: 56 [2018-11-10 12:34:53,428 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 12:34:53,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-10 12:34:53,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-10 12:34:53,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-10 12:34:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2018-11-10 12:34:53,454 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 21 [2018-11-10 12:34:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:34:53,454 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2018-11-10 12:34:53,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:34:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2018-11-10 12:34:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:34:53,455 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:34:53,456 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] [2018-11-10 12:34:53,456 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:34:53,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:34:53,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1236186078, now seen corresponding path program 1 times [2018-11-10 12:34:53,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:34:53,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:34:53,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:34:53,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:34:53,458 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:34:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:34:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:34:53,532 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:34:53,545 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,546 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,546 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,546 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,547 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,547 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,547 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,547 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,548 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,548 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,548 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,548 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,549 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,549 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,549 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,549 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,549 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,550 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,550 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:34:53,550 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:34:53,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:34:53 BoogieIcfgContainer [2018-11-10 12:34:53,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:34:53,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:34:53,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:34:53,572 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:34:53,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:34:53" (3/4) ... [2018-11-10 12:34:53,575 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:34:53,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:34:53,576 INFO L168 Benchmark]: Toolchain (without parser) took 1097.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -95.6 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:34:53,577 INFO L168 Benchmark]: CDTParser took 0.12 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 12:34:53,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.37 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 944.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:34:53,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.30 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:34:53,578 INFO L168 Benchmark]: Boogie Preprocessor took 75.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:34:53,579 INFO L168 Benchmark]: RCFGBuilder took 389.03 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:34:53,579 INFO L168 Benchmark]: TraceAbstraction took 396.47 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:34:53,579 INFO L168 Benchmark]: Witness Printer took 3.62 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 12:34:53,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 197.37 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 944.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.30 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 389.03 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 396.47 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.62 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.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.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.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.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.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.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.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.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.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.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: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 117, overapproximation of bitwiseAnd at line 116. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; [L98-L101] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L103] static const float zero = 0.0; VAL [\old(ivln10_log10)=6, \old(Lg1_log)=24, \old(Lg2_log)=26, \old(Lg3_log)=5, \old(Lg4_log)=9, \old(Lg5_log)=11, \old(Lg6_log)=22, \old(Lg7_log)=18, \old(ln2_hi_log)=8, \old(ln2_lo_log)=12, \old(log10_2hi_log10)=15, \old(log10_2lo_log10)=21, \old(two25_log)=17, \old(two25_log10)=20, \old(zero)=25, \old(zero_log)=14, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L154] float x = -1.0f / 0.0f; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] CALL, EXPR __ieee754_log10f(x) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L106] float y, z; [L107] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L110] CALL ieee_float_shape_type gf_u; [L110] RET ieee_float_shape_type gf_u; [L111] CALL gf_u.value = (x) [L111] RET gf_u.value = (x) [L112] CALL, EXPR gf_u.word [L112] RET, EXPR gf_u.word [L112] (hx) = gf_u.word [L112] RET (hx) = gf_u.word [L113] COND FALSE !(0) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L115] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L116] COND TRUE ((hx & 0x7fffffff) == 0) [L117] RET return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=10, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=23, zero=0, zero_log=0] [L155] float res = __ieee754_log10f(x); [L158] CALL, EXPR isnan_float(res) VAL [\old(x)=10, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L145] RET return x != x; VAL [\old(x)=10, \result=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10, zero=0, zero_log=0] [L158] EXPR isnan_float(res) VAL [isnan_float(res)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=10, two25_log=33554432, two25_log10=33554432, x=23, zero=0, zero_log=0] [L158] COND TRUE !isnan_float(res) [L159] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=10, two25_log=33554432, two25_log10=33554432, x=23, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 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=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:34:54,965 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:34:54,966 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:34:54,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:34:54,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:34:54,974 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:34:54,975 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:34:54,976 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:34:54,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:34:54,978 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:34:54,979 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:34:54,979 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:34:54,980 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:34:54,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:34:54,981 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:34:54,982 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:34:54,982 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:34:54,983 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:34:54,985 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:34:54,986 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:34:54,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:34:54,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:34:54,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:34:54,989 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:34:54,989 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:34:54,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:34:54,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:34:54,991 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:34:54,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:34:54,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:34:54,993 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:34:54,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:34:54,993 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:34:54,993 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:34:54,994 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:34:54,995 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:34:54,995 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 12:34:55,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:34:55,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:34:55,006 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:34:55,006 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:34:55,006 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:34:55,006 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:34:55,006 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:34:55,007 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:34:55,007 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:34:55,007 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:34:55,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:34:55,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:34:55,009 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:34:55,009 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:34:55,009 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:34:55,009 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:34:55,009 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:34:55,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:34:55,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:34:55,010 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:34:55,010 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:34:55,010 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 12:34:55,010 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:34:55,010 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 12:34:55,010 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 12:34:55,010 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_b8858e19-b754-4564-92ab-5efe95f9e87d/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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb [2018-11-10 12:34:55,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:34:55,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:34:55,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:34:55,053 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:34:55,053 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:34:55,054 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-10 12:34:55,098 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/c37d2e4ad/8f57174210cb48e5b25cfa8eed3d0046/FLAGc6481c5cf [2018-11-10 12:34:55,494 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:34:55,495 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-10 12:34:55,500 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/c37d2e4ad/8f57174210cb48e5b25cfa8eed3d0046/FLAGc6481c5cf [2018-11-10 12:34:55,508 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/data/c37d2e4ad/8f57174210cb48e5b25cfa8eed3d0046 [2018-11-10 12:34:55,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:34:55,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:34:55,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:34:55,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:34:55,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:34:55,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f8d760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55, skipping insertion in model container [2018-11-10 12:34:55,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:34:55,543 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:34:55,694 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:34:55,699 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:34:55,733 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:34:55,753 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:34:55,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55 WrapperNode [2018-11-10 12:34:55,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:34:55,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:34:55,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:34:55,754 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:34:55,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:34:55,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:34:55,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:34:55,791 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:34:55,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... [2018-11-10 12:34:55,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:34:55,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:34:55,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:34:55,827 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:34:55,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 12:34:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:34:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:34:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 12:34:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 12:34:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:34:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:34:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-10 12:34:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-10 12:34:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-10 12:34:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-10 12:34:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:34:55,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:34:56,141 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:35:07,158 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:35:07,930 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:35:08,522 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:35:08,545 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:35:08,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:35:08 BoogieIcfgContainer [2018-11-10 12:35:08,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:35:08,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:35:08,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:35:08,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:35:08,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:34:55" (1/3) ... [2018-11-10 12:35:08,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11173ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:35:08, skipping insertion in model container [2018-11-10 12:35:08,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:55" (2/3) ... [2018-11-10 12:35:08,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11173ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:35:08, skipping insertion in model container [2018-11-10 12:35:08,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:35:08" (3/3) ... [2018-11-10 12:35:08,553 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-11-10 12:35:08,561 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:35:08,567 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:35:08,579 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:35:08,602 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:35:08,603 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:35:08,603 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:35:08,603 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:35:08,603 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:35:08,603 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:35:08,603 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:35:08,604 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:35:08,604 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:35:08,617 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-10 12:35:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 12:35:08,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:35:08,623 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 12:35:08,624 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:35:08,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:35:08,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1760367969, now seen corresponding path program 1 times [2018-11-10 12:35:08,633 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:35:08,633 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 12:35:08,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:35:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:35:08,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:35:08,857 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 12:35:08,857 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:35:08,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:35:08,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:35:08,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:35:08,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:35:08,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:35:08,882 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-11-10 12:35:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:35:08,899 INFO L93 Difference]: Finished difference Result 110 states and 165 transitions. [2018-11-10 12:35:08,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:35:08,900 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-10 12:35:08,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:35:08,905 INFO L225 Difference]: With dead ends: 110 [2018-11-10 12:35:08,905 INFO L226 Difference]: Without dead ends: 55 [2018-11-10 12:35:08,907 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:35:08,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-10 12:35:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-10 12:35:08,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-10 12:35:08,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2018-11-10 12:35:08,937 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 20 [2018-11-10 12:35:08,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:35:08,937 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2018-11-10 12:35:08,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:35:08,938 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2018-11-10 12:35:08,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 12:35:08,939 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:35:08,939 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] [2018-11-10 12:35:08,939 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:35:08,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:35:08,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1735189799, now seen corresponding path program 1 times [2018-11-10 12:35:08,940 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:35:08,940 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 12:35:08,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:35:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:35:09,152 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:35:09,239 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 12:35:09,239 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:35:09,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:35:09,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 12:35:09,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 12:35:09,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 12:35:09,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 12:35:09,256 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand 6 states. [2018-11-10 12:35:10,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:35:10,345 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2018-11-10 12:35:10,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 12:35:10,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-10 12:35:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:35:10,348 INFO L225 Difference]: With dead ends: 69 [2018-11-10 12:35:10,348 INFO L226 Difference]: Without dead ends: 59 [2018-11-10 12:35:10,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 12:35:10,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-10 12:35:10,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-11-10 12:35:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-10 12:35:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2018-11-10 12:35:10,355 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 21 [2018-11-10 12:35:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:35:10,355 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2018-11-10 12:35:10,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 12:35:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2018-11-10 12:35:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:35:10,356 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:35:10,356 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] [2018-11-10 12:35:10,356 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:35:10,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:35:10,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1766645601, now seen corresponding path program 1 times [2018-11-10 12:35:10,357 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:35:10,357 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 12:35:10,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:35:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:35:10,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:35:11,028 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-10 12:35:11,198 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 12:35:11,198 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:35:11,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:35:11,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 12:35:11,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 12:35:11,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 12:35:11,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-10 12:35:11,210 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 10 states. [2018-11-10 12:35:12,462 WARN L179 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-10 12:35:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:35:15,246 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2018-11-10 12:35:15,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 12:35:15,247 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-10 12:35:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:35:15,248 INFO L225 Difference]: With dead ends: 66 [2018-11-10 12:35:15,248 INFO L226 Difference]: Without dead ends: 59 [2018-11-10 12:35:15,248 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-10 12:35:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-10 12:35:15,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-11-10 12:35:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-10 12:35:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2018-11-10 12:35:15,255 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 67 transitions. Word has length 22 [2018-11-10 12:35:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:35:15,255 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 67 transitions. [2018-11-10 12:35:15,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 12:35:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2018-11-10 12:35:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 12:35:15,256 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:35:15,256 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 12:35:15,256 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:35:15,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:35:15,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1955721443, now seen corresponding path program 1 times [2018-11-10 12:35:15,257 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:35:15,257 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/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 12:35:15,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:35:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:35:15,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:35:15,378 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 12:35:15,378 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:35:15,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:35:15,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 12:35:15,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 12:35:15,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 12:35:15,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 12:35:15,390 INFO L87 Difference]: Start difference. First operand 55 states and 67 transitions. Second operand 6 states. [2018-11-10 12:35:16,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:35:16,230 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2018-11-10 12:35:16,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 12:35:16,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-10 12:35:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:35:16,232 INFO L225 Difference]: With dead ends: 59 [2018-11-10 12:35:16,233 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:35:16,233 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 12:35:16,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:35:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:35:16,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:35:16,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:35:16,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-10 12:35:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:35:16,234 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:35:16,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 12:35:16,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:35:16,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:35:16,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:35:16,457 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 145) no Hoare annotation was computed. [2018-11-10 12:35:16,457 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 145) the Hoare annotation is: true [2018-11-10 12:35:16,457 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 145) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L428 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: true [2018-11-10 12:35:16,458 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-11-10 12:35:16,458 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-11-10 12:35:16,459 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-10 12:35:16,459 INFO L428 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: true [2018-11-10 12:35:16,459 INFO L425 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2018-11-10 12:35:16,459 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-11-10 12:35:16,459 INFO L428 ceAbstractionStarter]: At program point L49-3(lines 49 53) the Hoare annotation is: true [2018-11-10 12:35:16,459 INFO L425 ceAbstractionStarter]: For program point L49-4(lines 49 53) no Hoare annotation was computed. [2018-11-10 12:35:16,459 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-11-10 12:35:16,459 INFO L425 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-11-10 12:35:16,459 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 130) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L122-1(lines 122 130) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 135 139) no Hoare annotation was computed. [2018-11-10 12:35:16,460 INFO L421 ceAbstractionStarter]: At program point L135-3(lines 135 139) the Hoare annotation is: (or (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|))) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero~0))) [2018-11-10 12:35:16,460 INFO L421 ceAbstractionStarter]: At program point L135-4(lines 135 139) the Hoare annotation is: (or (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|))) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero~0))) [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L428 ceAbstractionStarter]: At program point __ieee754_log10fENTRY(lines 105 142) the Hoare annotation is: true [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point __ieee754_log10fEXIT(lines 105 142) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point __ieee754_log10fFINAL(lines 105 142) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point L120(lines 120 121) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point L116(lines 116 117) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point L125-1(lines 125 129) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L421 ceAbstractionStarter]: At program point L125-3(lines 125 129) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero~0)) (and (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|) (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|))))) [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point L109-1(lines 109 113) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L421 ceAbstractionStarter]: At program point L109-3(lines 109 113) the Hoare annotation is: (or (= |__ieee754_log10f_#in~x| __ieee754_log10f_~x) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero~0))) [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point L109-4(lines 109 113) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:35:16,461 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero~0) [2018-11-10 12:35:16,461 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:35:16,462 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:35:16,462 INFO L425 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2018-11-10 12:35:16,462 INFO L421 ceAbstractionStarter]: At program point L158(line 158) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) RNE (_ +zero 11 53)))) (or (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= main_~res~0 (fp.div RNE (fp.sub RNE .cse0 .cse0) .cse1)))) (not (= .cse1 ~zero~0)))) [2018-11-10 12:35:16,462 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 147 164) the Hoare annotation is: true [2018-11-10 12:35:16,462 INFO L425 ceAbstractionStarter]: For program point L158-1(lines 158 161) no Hoare annotation was computed. [2018-11-10 12:35:16,462 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 147 164) no Hoare annotation was computed. [2018-11-10 12:35:16,462 INFO L421 ceAbstractionStarter]: At program point L155(line 155) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero~0)) (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0)) [2018-11-10 12:35:16,462 INFO L425 ceAbstractionStarter]: For program point L155-1(line 155) no Hoare annotation was computed. [2018-11-10 12:35:16,462 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2018-11-10 12:35:16,462 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 147 164) no Hoare annotation was computed. [2018-11-10 12:35:16,467 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,467 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,467 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,467 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,469 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,471 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,471 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,471 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,471 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,471 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,472 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,472 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,472 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,473 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,473 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,473 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,473 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,474 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,474 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,474 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,474 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,474 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:35:16 BoogieIcfgContainer [2018-11-10 12:35:16,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:35:16,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:35:16,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:35:16,477 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:35:16,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:35:08" (3/4) ... [2018-11-10 12:35:16,479 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:35:16,483 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 12:35:16,483 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:35:16,484 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-10 12:35:16,484 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-11-10 12:35:16,484 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:35:16,491 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 103 nodes and edges [2018-11-10 12:35:16,492 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-10 12:35:16,492 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-10 12:35:16,492 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:35:16,510 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero) [2018-11-10 12:35:16,510 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero) || (~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) && (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x))) [2018-11-10 12:35:16,510 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x)) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero) [2018-11-10 12:35:16,546 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b8858e19-b754-4564-92ab-5efe95f9e87d/bin-2019/utaipan/witness.graphml [2018-11-10 12:35:16,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:35:16,547 INFO L168 Benchmark]: Toolchain (without parser) took 21035.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 949.2 MB in the beginning and 925.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 188.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:35:16,547 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:35:16,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:35:16,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.89 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:35:16,548 INFO L168 Benchmark]: Boogie Preprocessor took 35.31 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:35:16,548 INFO L168 Benchmark]: RCFGBuilder took 12718.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:35:16,549 INFO L168 Benchmark]: TraceAbstraction took 7930.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.8 MB in the end (delta: 168.3 MB). Peak memory consumption was 168.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:35:16,549 INFO L168 Benchmark]: Witness Printer took 69.73 ms. Allocated memory is still 1.2 GB. Free memory was 931.8 MB in the beginning and 925.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:35:16,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.89 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.31 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12718.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7930.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.8 MB in the end (delta: 168.3 MB). Peak memory consumption was 168.3 MB. Max. memory is 11.5 GB. * Witness Printer took 69.73 ms. Allocated memory is still 1.2 GB. Free memory was 931.8 MB in the beginning and 925.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: 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: 49]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 135]: Loop Invariant [2018-11-10 12:35:16,554 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,554 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,555 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,555 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,555 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,555 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,556 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,556 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,556 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,556 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x)) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero) - InvariantResult [Line: 109]: Loop Invariant [2018-11-10 12:35:16,556 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,557 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero) - InvariantResult [Line: 125]: Loop Invariant [2018-11-10 12:35:16,557 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,557 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,557 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,557 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,557 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,558 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 12:35:16,558 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,558 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,558 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-10 12:35:16,558 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero) || (~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) && (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x))) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. SAFE Result, 7.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 6.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 243 SDtfs, 117 SDslu, 782 SDs, 0 SdLazy, 155 SolverSat, 12 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 23 PreInvPairs, 32 NumberOfFragments, 156 HoareAnnotationTreeSize, 23 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 8678 SizeOfPredicates, 23 NumberOfNonLiveVariables, 451 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...