./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_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_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 86466cf5e99320b887fae6f726f2af775c2eaef8 .................................................................................................................................................................................................................................................................................................................................................................................... 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_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 86466cf5e99320b887fae6f726f2af775c2eaef8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:10:49,977 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:10:49,979 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:10:49,988 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:10:49,988 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:10:49,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:10:49,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:10:49,991 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:10:49,992 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:10:49,993 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:10:49,994 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:10:49,994 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:10:49,995 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:10:49,996 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:10:49,996 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:10:49,997 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:10:49,998 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:10:50,000 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:10:50,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:10:50,002 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:10:50,003 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:10:50,004 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:10:50,006 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:10:50,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:10:50,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:10:50,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:10:50,008 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:10:50,009 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:10:50,009 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:10:50,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:10:50,010 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:10:50,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:10:50,011 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:10:50,011 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:10:50,012 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:10:50,012 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:10:50,012 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 20:10:50,024 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:10:50,024 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:10:50,025 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:10:50,025 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 20:10:50,026 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 20:10:50,026 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 20:10:50,026 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 20:10:50,026 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 20:10:50,026 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 20:10:50,026 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 20:10:50,026 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 20:10:50,027 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:10:50,027 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:10:50,027 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:10:50,027 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:10:50,028 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:10:50,028 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:10:50,028 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:10:50,028 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:10:50,028 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:10:50,028 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:10:50,028 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:10:50,029 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:10:50,029 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:10:50,029 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:10:50,029 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:10:50,029 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:10:50,031 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:10:50,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:10:50,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:10:50,032 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 20:10:50,032 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:10:50,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:10:50,032 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 20:10:50,032 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_52739c35-7d3c-455f-ba93-7d6e486ab005/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-10-26 20:10:50,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:10:50,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:10:50,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:10:50,072 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:10:50,072 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:10:50,073 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-10-26 20:10:50,114 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/7341bdfa2/a3c8c580a43c4f449ed28ac7acab40b9/FLAG68d7cf151 [2018-10-26 20:10:50,488 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:10:50,488 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-10-26 20:10:50,495 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/7341bdfa2/a3c8c580a43c4f449ed28ac7acab40b9/FLAG68d7cf151 [2018-10-26 20:10:50,507 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/7341bdfa2/a3c8c580a43c4f449ed28ac7acab40b9 [2018-10-26 20:10:50,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:10:50,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:10:50,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:10:50,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:10:50,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:10:50,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a5fd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50, skipping insertion in model container [2018-10-26 20:10:50,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:10:50,544 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:10:50,687 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:10:50,690 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:10:50,722 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:10:50,740 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:10:50,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50 WrapperNode [2018-10-26 20:10:50,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:10:50,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:10:50,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:10:50,742 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:10:50,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:10:50,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:10:50,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:10:50,783 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:10:50,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... [2018-10-26 20:10:50,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:10:50,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:10:50,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:10:50,820 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:10:50,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 [2018-10-26 20:10:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:10:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:10:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-26 20:10:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-26 20:10:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:10:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:10:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-10-26 20:10:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-10-26 20:10:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:10:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:10:51,511 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:10:51,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:10:51 BoogieIcfgContainer [2018-10-26 20:10:51,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:10:51,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:10:51,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:10:51,515 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:10:51,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:10:50" (1/3) ... [2018-10-26 20:10:51,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589c46bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:10:51, skipping insertion in model container [2018-10-26 20:10:51,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:50" (2/3) ... [2018-10-26 20:10:51,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589c46bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:10:51, skipping insertion in model container [2018-10-26 20:10:51,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:10:51" (3/3) ... [2018-10-26 20:10:51,518 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-10-26 20:10:51,526 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:10:51,533 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:10:51,548 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:10:51,574 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:10:51,575 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:10:51,575 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:10:51,575 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:10:51,575 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:10:51,575 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:10:51,575 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:10:51,575 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:10:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-26 20:10:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:10:51,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:10:51,596 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] [2018-10-26 20:10:51,598 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:10:51,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:10:51,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1808585883, now seen corresponding path program 1 times [2018-10-26 20:10:51,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:10:51,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:10:51,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:10:51,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:10:51,647 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:10:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:10:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:10:51,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:10:51,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 20:10:51,730 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:10:51,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 20:10:51,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 20:10:51,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 20:10:51,747 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-26 20:10:51,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:10:51,765 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2018-10-26 20:10:51,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 20:10:51,766 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-26 20:10:51,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:10:51,775 INFO L225 Difference]: With dead ends: 78 [2018-10-26 20:10:51,775 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 20:10:51,778 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 [2018-10-26 20:10:51,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 20:10:51,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 20:10:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 20:10:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-10-26 20:10:51,811 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2018-10-26 20:10:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:10:51,812 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-10-26 20:10:51,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 20:10:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-10-26 20:10:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 20:10:51,812 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:10:51,813 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:10:51,813 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:10:51,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:10:51,813 INFO L82 PathProgramCache]: Analyzing trace with hash 941490085, now seen corresponding path program 1 times [2018-10-26 20:10:51,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:10:51,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:10:51,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:10:51,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:10:51,814 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:10:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:10:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:10:51,891 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 20:10:51,905 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,906 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,906 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,906 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,907 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,907 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,907 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,907 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 20:10:51,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 20:10:51,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:10:51 BoogieIcfgContainer [2018-10-26 20:10:51,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:10:51,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:10:51,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:10:51,930 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:10:51,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:10:51" (3/4) ... [2018-10-26 20:10:51,934 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 20:10:51,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:10:51,935 INFO L168 Benchmark]: Toolchain (without parser) took 1425.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2018-10-26 20:10:51,936 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:10:51,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.62 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 940.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-10-26 20:10:51,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.05 ms. Allocated memory is still 1.0 GB. Free memory was 940.8 MB in the beginning and 938.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:10:51,937 INFO L168 Benchmark]: Boogie Preprocessor took 36.79 ms. Allocated memory is still 1.0 GB. Free memory was 938.2 MB in the beginning and 935.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:10:51,938 INFO L168 Benchmark]: RCFGBuilder took 691.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:10:51,938 INFO L168 Benchmark]: TraceAbstraction took 417.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-10-26 20:10:51,939 INFO L168 Benchmark]: Witness Printer took 4.25 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. [2018-10-26 20:10:51,942 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 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.62 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 940.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.05 ms. Allocated memory is still 1.0 GB. Free memory was 940.8 MB in the beginning and 938.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.79 ms. Allocated memory is still 1.0 GB. Free memory was 938.2 MB in the beginning and 935.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 691.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 417.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 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: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] 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; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450959, \old(Lg2_log)=6442450960, \old(Lg3_log)=6442450946, \old(Lg4_log)=6442450949, \old(Lg5_log)=6442450951, \old(Lg6_log)=6442450958, \old(Lg7_log)=6442450957, \old(ln2_hi_log)=6442450948, \old(ln2_lo_log)=6442450953, \old(two25_log)=6442450956, \old(zero_log)=6442450955, 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, two25_log=33554432, zero_log=0] [L119] float x = 0.0f / 0.0f; VAL [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, two25_log=33554432, zero_log=0] [L120] CALL, EXPR __ieee754_logf(x) VAL [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, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [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, two25_log=33554432, zero_log=0] [L37] CALL ieee_float_shape_type gf_u; [L37] RET ieee_float_shape_type gf_u; [L38] CALL gf_u.value = (x) [L38] RET gf_u.value = (x) [L39] CALL, EXPR gf_u.word [L39] RET, EXPR gf_u.word [L39] (ix) = gf_u.word [L39] RET (ix) = gf_u.word [L40] COND FALSE !(0) VAL [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, two25_log=33554432, zero_log=0] [L42] k = 0 VAL [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, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [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, two25_log=33554432, zero_log=0] [L120] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450950, 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, two25_log=33554432, x=6442450952, zero_log=0] [L120] float res = __ieee754_logf(x); [L123] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450950, 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, two25_log=33554432, zero_log=0] [L111] RET return x != x; VAL [\old(x)=6442450950, \result=0, 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, two25_log=33554432, x=6442450950, zero_log=0] [L123] EXPR isnan_float(res) VAL [isnan_float(res)=0, 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, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __VERIFIER_error() VAL [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, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 [2018-10-26 20:10:53,777 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:10:53,779 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:10:53,789 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:10:53,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:10:53,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:10:53,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:10:53,792 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:10:53,794 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:10:53,795 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:10:53,795 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:10:53,795 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:10:53,796 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:10:53,797 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:10:53,798 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:10:53,799 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:10:53,799 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:10:53,801 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:10:53,803 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:10:53,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:10:53,805 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:10:53,806 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:10:53,808 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:10:53,808 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:10:53,808 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:10:53,809 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:10:53,810 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:10:53,811 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:10:53,811 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:10:53,812 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:10:53,812 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:10:53,813 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:10:53,813 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:10:53,814 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:10:53,815 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:10:53,815 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:10:53,815 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 20:10:53,827 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:10:53,827 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:10:53,828 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:10:53,828 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 20:10:53,828 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 20:10:53,828 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 20:10:53,828 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 20:10:53,829 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 20:10:53,829 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:10:53,829 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:10:53,829 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:10:53,829 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:10:53,830 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:10:53,830 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:10:53,830 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:10:53,830 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 20:10:53,830 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 20:10:53,830 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:10:53,830 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:10:53,831 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:10:53,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:10:53,831 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:10:53,831 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:10:53,831 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:10:53,831 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:10:53,831 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:10:53,832 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:10:53,832 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:10:53,832 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 20:10:53,832 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:10:53,832 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 20:10:53,832 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 20:10:53,832 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_52739c35-7d3c-455f-ba93-7d6e486ab005/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-10-26 20:10:53,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:10:53,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:10:53,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:10:53,889 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:10:53,889 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:10:53,889 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-10-26 20:10:53,943 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/2d79a8d64/b53fc385df5849b186bf26868c538665/FLAG34b85bde6 [2018-10-26 20:10:54,372 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:10:54,383 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-10-26 20:10:54,392 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/2d79a8d64/b53fc385df5849b186bf26868c538665/FLAG34b85bde6 [2018-10-26 20:10:54,406 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/data/2d79a8d64/b53fc385df5849b186bf26868c538665 [2018-10-26 20:10:54,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:10:54,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:10:54,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:10:54,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:10:54,416 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:10:54,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dac868e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54, skipping insertion in model container [2018-10-26 20:10:54,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:10:54,448 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:10:54,604 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:10:54,608 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:10:54,642 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:10:54,662 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:10:54,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54 WrapperNode [2018-10-26 20:10:54,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:10:54,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:10:54,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:10:54,664 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:10:54,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:10:54,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:10:54,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:10:54,705 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:10:54,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... [2018-10-26 20:10:54,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:10:54,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:10:54,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:10:54,741 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:10:54,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 [2018-10-26 20:10:54,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:10:54,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:10:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-26 20:10:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-26 20:10:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:10:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:10:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-10-26 20:10:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-10-26 20:10:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:10:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:10:55,262 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 20:11:08,048 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 20:11:08,107 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:11:08,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:11:08 BoogieIcfgContainer [2018-10-26 20:11:08,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:11:08,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:11:08,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:11:08,111 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:11:08,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:10:54" (1/3) ... [2018-10-26 20:11:08,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee30a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:11:08, skipping insertion in model container [2018-10-26 20:11:08,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:10:54" (2/3) ... [2018-10-26 20:11:08,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee30a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:11:08, skipping insertion in model container [2018-10-26 20:11:08,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:11:08" (3/3) ... [2018-10-26 20:11:08,114 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-10-26 20:11:08,120 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:11:08,126 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:11:08,139 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:11:08,162 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 20:11:08,162 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:11:08,163 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:11:08,163 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:11:08,163 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:11:08,163 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:11:08,163 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:11:08,163 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:11:08,163 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:11:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-10-26 20:11:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 20:11:08,183 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:11:08,184 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] [2018-10-26 20:11:08,186 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:11:08,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:11:08,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1982603429, now seen corresponding path program 1 times [2018-10-26 20:11:08,194 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 20:11:08,195 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 [2018-10-26 20:11:08,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:11:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:11:08,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:11:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:11:08,463 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 20:11:08,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:11:08,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 20:11:08,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 20:11:08,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 20:11:08,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 20:11:08,491 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-10-26 20:11:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:11:08,507 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-10-26 20:11:08,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 20:11:08,508 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-26 20:11:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:11:08,517 INFO L225 Difference]: With dead ends: 76 [2018-10-26 20:11:08,518 INFO L226 Difference]: Without dead ends: 38 [2018-10-26 20:11:08,520 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 [2018-10-26 20:11:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-26 20:11:08,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-10-26 20:11:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 20:11:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-10-26 20:11:08,553 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 20 [2018-10-26 20:11:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:11:08,553 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-10-26 20:11:08,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 20:11:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-10-26 20:11:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:11:08,554 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:11:08,554 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] [2018-10-26 20:11:08,554 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:11:08,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:11:08,555 INFO L82 PathProgramCache]: Analyzing trace with hash -75431839, now seen corresponding path program 1 times [2018-10-26 20:11:08,555 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 20:11:08,555 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 [2018-10-26 20:11:08,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:11:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:11:08,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:11:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:11:09,118 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 20:11:09,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:11:09,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 20:11:09,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 20:11:09,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 20:11:09,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 20:11:09,136 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand 6 states. [2018-10-26 20:11:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:11:12,716 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-10-26 20:11:12,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 20:11:12,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-26 20:11:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:11:12,719 INFO L225 Difference]: With dead ends: 52 [2018-10-26 20:11:12,719 INFO L226 Difference]: Without dead ends: 42 [2018-10-26 20:11:12,720 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-26 20:11:12,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-10-26 20:11:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-10-26 20:11:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 20:11:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2018-10-26 20:11:12,727 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 21 [2018-10-26 20:11:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:11:12,727 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2018-10-26 20:11:12,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 20:11:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-10-26 20:11:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 20:11:12,728 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:11:12,728 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] [2018-10-26 20:11:12,728 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:11:12,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:11:12,729 INFO L82 PathProgramCache]: Analyzing trace with hash -406668313, now seen corresponding path program 1 times [2018-10-26 20:11:12,729 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 20:11:12,729 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 [2018-10-26 20:11:12,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:11:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:11:12,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:11:15,913 WARN L179 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 11 [2018-10-26 20:11:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:11:16,140 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 20:11:16,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:11:16,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-26 20:11:16,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 20:11:16,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 20:11:16,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-10-26 20:11:16,156 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 10 states. [2018-10-26 20:11:17,820 WARN L179 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 20:11:31,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:11:31,116 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-10-26 20:11:31,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 20:11:31,117 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-10-26 20:11:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:11:31,118 INFO L225 Difference]: With dead ends: 49 [2018-10-26 20:11:31,118 INFO L226 Difference]: Without dead ends: 42 [2018-10-26 20:11:31,120 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-10-26 20:11:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-10-26 20:11:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-10-26 20:11:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 20:11:31,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-10-26 20:11:31,130 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 22 [2018-10-26 20:11:31,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:11:31,131 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-10-26 20:11:31,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 20:11:31,131 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-10-26 20:11:31,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 20:11:31,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:11:31,132 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] [2018-10-26 20:11:31,132 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:11:31,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:11:31,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1423848861, now seen corresponding path program 1 times [2018-10-26 20:11:31,133 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 20:11:31,135 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/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 [2018-10-26 20:11:31,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:11:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:11:31,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:11:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:11:31,849 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 20:11:31,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:11:31,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 20:11:31,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 20:11:31,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 20:11:31,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 20:11:31,865 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 9 states. [2018-10-26 20:11:32,425 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-26 20:11:44,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:11:44,519 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-10-26 20:11:44,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 20:11:44,521 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-10-26 20:11:44,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:11:44,523 INFO L225 Difference]: With dead ends: 47 [2018-10-26 20:11:44,523 INFO L226 Difference]: Without dead ends: 40 [2018-10-26 20:11:44,523 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-10-26 20:11:44,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-26 20:11:44,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-10-26 20:11:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 20:11:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-10-26 20:11:44,529 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 23 [2018-10-26 20:11:44,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:11:44,529 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-10-26 20:11:44,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 20:11:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-10-26 20:11:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 20:11:44,530 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:11:44,530 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:11:44,530 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:11:44,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:11:44,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1840261923, now seen corresponding path program 1 times [2018-10-26 20:11:44,531 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 20:11:44,531 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 20:11:44,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:11:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:11:45,537 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:11:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:11:45,650 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 20:11:45,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:11:45,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 20:11:45,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 20:11:45,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 20:11:45,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-26 20:11:45,669 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-10-26 20:11:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:11:48,447 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-10-26 20:11:48,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 20:11:48,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-10-26 20:11:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:11:48,450 INFO L225 Difference]: With dead ends: 40 [2018-10-26 20:11:48,450 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:11:48,451 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-10-26 20:11:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:11:48,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:11:48,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:11:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:11:48,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-26 20:11:48,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:11:48,452 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:11:48,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 20:11:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:11:48,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:11:48,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:11:48,623 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-26 20:11:48,755 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-10-26 20:11:48,755 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-10-26 20:11:48,755 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-10-26 20:11:48,755 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:11:48,755 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:11:48,755 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:11:48,755 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-10-26 20:11:48,756 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-10-26 20:11:48,756 INFO L421 ceAbstractionStarter]: At program point L52-3(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))))) [2018-10-26 20:11:48,756 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-10-26 20:11:48,756 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-10-26 20:11:48,756 INFO L421 ceAbstractionStarter]: At program point L36-3(lines 36 40) the Hoare annotation is: (or (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-10-26 20:11:48,756 INFO L425 ceAbstractionStarter]: For program point L36-4(lines 36 40) no Hoare annotation was computed. [2018-10-26 20:11:48,756 INFO L425 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-10-26 20:11:48,756 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-10-26 20:11:48,756 INFO L421 ceAbstractionStarter]: At program point L61-3(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-10-26 20:11:48,757 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-10-26 20:11:48,757 INFO L425 ceAbstractionStarter]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2018-10-26 20:11:48,757 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-10-26 20:11:48,757 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-10-26 20:11:48,757 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-10-26 20:11:48,757 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-10-26 20:11:48,757 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:11:48,760 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0) [2018-10-26 20:11:48,760 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:11:48,761 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:11:48,761 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 113 129) the Hoare annotation is: true [2018-10-26 20:11:48,761 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 113 129) no Hoare annotation was computed. [2018-10-26 20:11:48,761 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-10-26 20:11:48,761 INFO L421 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0)))) [2018-10-26 20:11:48,761 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 123 126) no Hoare annotation was computed. [2018-10-26 20:11:48,761 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 113 129) no Hoare annotation was computed. [2018-10-26 20:11:48,761 INFO L421 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0)) [2018-10-26 20:11:48,761 INFO L425 ceAbstractionStarter]: For program point L120-1(line 120) no Hoare annotation was computed. [2018-10-26 20:11:48,762 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2018-10-26 20:11:48,767 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,769 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,769 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,774 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,774 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,774 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,775 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,775 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,775 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,776 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,776 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,777 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,777 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,777 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,778 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,778 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,778 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,778 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,779 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,779 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,779 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,779 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,779 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:11:48 BoogieIcfgContainer [2018-10-26 20:11:48,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:11:48,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:11:48,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:11:48,786 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:11:48,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:11:08" (3/4) ... [2018-10-26 20:11:48,790 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 20:11:48,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-10-26 20:11:48,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 20:11:48,796 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-10-26 20:11:48,797 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 20:11:48,803 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2018-10-26 20:11:48,804 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-10-26 20:11:48,804 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-26 20:11:48,804 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 20:11:48,831 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) [2018-10-26 20:11:48,831 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) [2018-10-26 20:11:48,831 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-10-26 20:11:48,886 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_52739c35-7d3c-455f-ba93-7d6e486ab005/bin-2019/utaipan/witness.graphml [2018-10-26 20:11:48,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:11:48,887 INFO L168 Benchmark]: Toolchain (without parser) took 54476.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 954.6 MB in the beginning and 937.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 217.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:11:48,887 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. [2018-10-26 20:11:48,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.77 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 20:11:48,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.54 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 20:11:48,888 INFO L168 Benchmark]: Boogie Preprocessor took 36.45 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:11:48,888 INFO L168 Benchmark]: RCFGBuilder took 13366.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 933.1 MB in the beginning and 1.2 GB in the end (delta: -227.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-10-26 20:11:48,889 INFO L168 Benchmark]: TraceAbstraction took 40677.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 943.8 MB in the end (delta: 216.9 MB). Peak memory consumption was 216.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:11:48,889 INFO L168 Benchmark]: Witness Printer took 99.92 ms. Allocated memory is still 1.2 GB. Free memory was 943.8 MB in the beginning and 937.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:11:48,893 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 251.77 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 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 40.54 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.45 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 13366.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 933.1 MB in the beginning and 1.2 GB in the end (delta: -227.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 40677.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 943.8 MB in the end (delta: 216.9 MB). Peak memory consumption was 216.9 MB. Max. memory is 11.5 GB. * Witness Printer took 99.92 ms. Allocated memory is still 1.2 GB. Free memory was 943.8 MB in the beginning and 937.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,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_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,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_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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: 61]: Loop Invariant [2018-10-26 20:11:48,899 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,901 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,901 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,902 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,902 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,902 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,902 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,903 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,903 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,903 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,903 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-10-26 20:11:48,903 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,904 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) - InvariantResult [Line: 52]: Loop Invariant [2018-10-26 20:11:48,904 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,904 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,904 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,904 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,905 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 20:11:48,905 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-26 20:11:48,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. SAFE Result, 40.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 34.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 196 SDtfs, 104 SDslu, 705 SDs, 0 SdLazy, 243 SolverSat, 14 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 31.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 21 NumberOfFragments, 119 HoareAnnotationTreeSize, 15 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 12 QuantifiedInterpolants, 15843 SizeOfPredicates, 27 NumberOfNonLiveVariables, 538 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...