./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbf38875841624eee0d839935b3b6d34a59b0b20 ................................................................................................................................................................................................................................................................................................................ 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_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbf38875841624eee0d839935b3b6d34a59b0b20 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:16:25,996 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:16:25,997 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:16:26,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:16:26,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:16:26,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:16:26,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:16:26,006 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:16:26,007 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:16:26,008 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:16:26,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:16:26,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:16:26,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:16:26,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:16:26,010 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:16:26,010 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:16:26,011 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:16:26,012 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:16:26,013 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:16:26,014 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:16:26,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:16:26,015 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:16:26,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:16:26,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:16:26,017 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:16:26,018 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:16:26,018 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:16:26,019 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:16:26,019 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:16:26,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:16:26,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:16:26,020 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:16:26,020 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:16:26,020 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:16:26,021 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:16:26,021 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:16:26,021 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:16:26,028 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:16:26,028 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:16:26,029 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:16:26,029 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:16:26,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:16:26,030 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:16:26,030 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:16:26,030 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:16:26,030 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:16:26,030 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:16:26,031 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:16:26,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:16:26,031 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:16:26,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:16:26,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:16:26,031 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:16:26,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:16:26,032 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:16:26,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:16:26,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:16:26,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:16:26,032 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:16:26,032 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:16:26,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:16:26,033 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:16:26,033 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:16:26,033 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:16:26,033 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:16:26,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:16:26,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:16:26,033 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_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer 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 -> Automizer 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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-11-28 11:16:26,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:16:26,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:16:26,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:16:26,069 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:16:26,069 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:16:26,069 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-28 11:16:26,107 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/2fc5d054a/8fe9031c9b224744b6e134c95fed565a/FLAG18e138faf [2018-11-28 11:16:26,449 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:16:26,450 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-28 11:16:26,453 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/2fc5d054a/8fe9031c9b224744b6e134c95fed565a/FLAG18e138faf [2018-11-28 11:16:26,869 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/2fc5d054a/8fe9031c9b224744b6e134c95fed565a [2018-11-28 11:16:26,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:16:26,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:16:26,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:16:26,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:16:26,876 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:16:26,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:26" (1/1) ... [2018-11-28 11:16:26,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229cade9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:26, skipping insertion in model container [2018-11-28 11:16:26,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:26" (1/1) ... [2018-11-28 11:16:26,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:16:26,893 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:16:26,998 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:16:27,000 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:16:27,013 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:16:27,025 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:16:27,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27 WrapperNode [2018-11-28 11:16:27,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:16:27,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:16:27,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:16:27,026 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:16:27,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:16:27,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:16:27,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:16:27,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:16:27,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... [2018-11-28 11:16:27,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:16:27,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:16:27,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:16:27,095 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:16:27,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:16:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 11:16:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 11:16:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 11:16:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:16:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:16:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:16:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 11:16:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:16:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:16:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:16:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:16:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:16:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:16:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-28 11:16:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-28 11:16:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:16:27,290 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:16:27,290 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 11:16:27,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:27 BoogieIcfgContainer [2018-11-28 11:16:27,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:16:27,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:16:27,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:16:27,293 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:16:27,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:16:26" (1/3) ... [2018-11-28 11:16:27,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5207ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:16:27, skipping insertion in model container [2018-11-28 11:16:27,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:27" (2/3) ... [2018-11-28 11:16:27,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5207ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:16:27, skipping insertion in model container [2018-11-28 11:16:27,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:27" (3/3) ... [2018-11-28 11:16:27,295 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-11-28 11:16:27,302 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:16:27,308 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:16:27,323 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:16:27,346 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:16:27,346 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:16:27,347 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:16:27,347 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:16:27,347 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:16:27,347 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:16:27,347 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:16:27,347 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:16:27,347 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:16:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-28 11:16:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 11:16:27,363 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:16:27,364 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:16:27,365 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:16:27,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:16:27,369 INFO L82 PathProgramCache]: Analyzing trace with hash 846806543, now seen corresponding path program 1 times [2018-11-28 11:16:27,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:16:27,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:16:27,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:16:27,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:16:27,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:16:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:16:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:16:27,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:16:27,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:16:27,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:16:27,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:16:27,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:16:27,467 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-28 11:16:27,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:16:27,480 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2018-11-28 11:16:27,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:16:27,481 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 11:16:27,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:16:27,487 INFO L225 Difference]: With dead ends: 60 [2018-11-28 11:16:27,487 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 11:16:27,489 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:16:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 11:16:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 11:16:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 11:16:27,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-11-28 11:16:27,513 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 22 [2018-11-28 11:16:27,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:16:27,513 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-11-28 11:16:27,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:16:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-11-28 11:16:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:16:27,514 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:16:27,514 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:16:27,515 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:16:27,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:16:27,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1446285465, now seen corresponding path program 1 times [2018-11-28 11:16:27,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:16:27,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:16:27,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:16:27,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:16:27,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:16:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:16:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:16:27,590 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:16:27,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:16:27 BoogieIcfgContainer [2018-11-28 11:16:27,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:16:27,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:16:27,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:16:27,609 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:16:27,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:27" (3/4) ... [2018-11-28 11:16:27,612 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:16:27,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:16:27,612 INFO L168 Benchmark]: Toolchain (without parser) took 740.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -127.6 MB). Peak memory consumption was 895.3 kB. Max. memory is 11.5 GB. [2018-11-28 11:16:27,613 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:16:27,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:27,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.25 ms. Allocated memory is still 1.0 GB. Free memory was 941.5 MB in the beginning and 938.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:27,615 INFO L168 Benchmark]: Boogie Preprocessor took 53.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:27,616 INFO L168 Benchmark]: RCFGBuilder took 195.99 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:27,616 INFO L168 Benchmark]: TraceAbstraction took 317.80 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:27,616 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:16:27,619 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.25 ms. Allocated memory is still 1.0 GB. Free memory was 941.5 MB in the beginning and 938.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 195.99 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 317.80 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L53] CALL, EXPR trunc_float(x) VAL [\old(x)=6442450948] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6442450948, x=6442450948] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450948, exponent_less_127=255, signbit=-1, w=-2147483648, x=6442450948] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450948, exponent_less_127=255, signbit=-1, w=-2147483648, x=6442450948] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=6442450948, exponent_less_127=255, signbit=-1, w=-2147483648, x=6442450948] [L53] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450946, x=6442450948] [L53] float res = trunc_float(x); [L56] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450946] [L44] return x != x; VAL [\old(x)=6442450946, \result=0, x=6442450946] [L56] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=6442450946, x=6442450948] [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() VAL [res=6442450946, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:16:29,036 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:16:29,037 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:16:29,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:16:29,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:16:29,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:16:29,046 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:16:29,048 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:16:29,049 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:16:29,049 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:16:29,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:16:29,050 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:16:29,051 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:16:29,051 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:16:29,052 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:16:29,053 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:16:29,053 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:16:29,055 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:16:29,056 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:16:29,057 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:16:29,058 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:16:29,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:16:29,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:16:29,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:16:29,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:16:29,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:16:29,062 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:16:29,063 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:16:29,063 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:16:29,064 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:16:29,064 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:16:29,065 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:16:29,065 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:16:29,065 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:16:29,066 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:16:29,067 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:16:29,067 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 11:16:29,077 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:16:29,077 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:16:29,078 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:16:29,078 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:16:29,079 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:16:29,079 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:16:29,079 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:16:29,079 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:16:29,079 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:16:29,079 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:16:29,080 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:16:29,081 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:16:29,081 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:16:29,081 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:16:29,081 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:16:29,081 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:16:29,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:16:29,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:16:29,082 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:16:29,082 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:16:29,082 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 11:16:29,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:16:29,082 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 11:16:29,082 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 11:16:29,082 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_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer 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 -> Automizer 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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-11-28 11:16:29,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:16:29,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:16:29,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:16:29,120 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:16:29,120 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:16:29,121 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-28 11:16:29,158 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/ad96c8eda/049a407eb1a54803927608312e9e9f63/FLAG2ee56648c [2018-11-28 11:16:29,554 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:16:29,555 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-28 11:16:29,559 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/ad96c8eda/049a407eb1a54803927608312e9e9f63/FLAG2ee56648c [2018-11-28 11:16:29,566 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/data/ad96c8eda/049a407eb1a54803927608312e9e9f63 [2018-11-28 11:16:29,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:16:29,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:16:29,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:16:29,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:16:29,573 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:16:29,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2522ee7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29, skipping insertion in model container [2018-11-28 11:16:29,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:16:29,594 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:16:29,704 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:16:29,708 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:16:29,722 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:16:29,742 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:16:29,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29 WrapperNode [2018-11-28 11:16:29,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:16:29,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:16:29,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:16:29,743 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:16:29,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:16:29,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:16:29,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:16:29,760 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:16:29,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... [2018-11-28 11:16:29,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:16:29,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:16:29,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:16:29,781 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:16:29,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:16:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 11:16:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 11:16:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:16:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:16:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:16:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 11:16:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:16:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:16:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 11:16:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:16:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:16:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-28 11:16:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-28 11:16:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 11:16:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 11:16:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:16:30,049 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:16:30,074 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:16:30,074 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 11:16:30,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:30 BoogieIcfgContainer [2018-11-28 11:16:30,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:16:30,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:16:30,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:16:30,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:16:30,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:16:29" (1/3) ... [2018-11-28 11:16:30,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24eab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:16:30, skipping insertion in model container [2018-11-28 11:16:30,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:29" (2/3) ... [2018-11-28 11:16:30,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24eab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:16:30, skipping insertion in model container [2018-11-28 11:16:30,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:30" (3/3) ... [2018-11-28 11:16:30,080 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-11-28 11:16:30,086 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:16:30,090 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:16:30,102 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:16:30,119 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:16:30,119 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:16:30,119 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:16:30,119 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:16:30,119 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:16:30,119 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:16:30,120 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:16:30,120 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:16:30,120 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:16:30,129 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-28 11:16:30,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 11:16:30,132 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:16:30,133 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:16:30,134 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:16:30,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:16:30,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1067176125, now seen corresponding path program 1 times [2018-11-28 11:16:30,140 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:16:30,140 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 11:16:30,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:16:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:16:30,197 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:16:30,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:16:30,208 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:16:30,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:16:30,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:16:30,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:16:30,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:16:30,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:16:30,227 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-11-28 11:16:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:16:30,241 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions. [2018-11-28 11:16:30,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:16:30,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 11:16:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:16:30,248 INFO L225 Difference]: With dead ends: 58 [2018-11-28 11:16:30,248 INFO L226 Difference]: Without dead ends: 29 [2018-11-28 11:16:30,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:16:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-28 11:16:30,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-28 11:16:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 11:16:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-11-28 11:16:30,274 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 21 [2018-11-28 11:16:30,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:16:30,274 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-11-28 11:16:30,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:16:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-11-28 11:16:30,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 11:16:30,275 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:16:30,275 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:16:30,275 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:16:30,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:16:30,276 INFO L82 PathProgramCache]: Analyzing trace with hash -560796248, now seen corresponding path program 1 times [2018-11-28 11:16:30,276 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:16:30,276 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 11:16:30,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:16:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:16:30,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:16:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:16:30,391 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:16:30,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:16:30,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 11:16:30,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 11:16:30,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:16:30,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:16:30,400 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 4 states. [2018-11-28 11:16:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:16:30,437 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-11-28 11:16:30,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 11:16:30,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-28 11:16:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:16:30,440 INFO L225 Difference]: With dead ends: 42 [2018-11-28 11:16:30,440 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 11:16:30,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:16:30,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 11:16:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2018-11-28 11:16:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 11:16:30,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-11-28 11:16:30,444 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 22 [2018-11-28 11:16:30,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:16:30,444 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-11-28 11:16:30,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 11:16:30,444 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-11-28 11:16:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:16:30,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:16:30,445 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:16:30,445 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:16:30,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:16:30,445 INFO L82 PathProgramCache]: Analyzing trace with hash 707143418, now seen corresponding path program 1 times [2018-11-28 11:16:30,446 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:16:30,446 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 11:16:30,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:16:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:16:30,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:16:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:16:30,596 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:16:30,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:16:30,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 11:16:30,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 11:16:30,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 11:16:30,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:16:30,605 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2018-11-28 11:16:30,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:16:30,804 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-11-28 11:16:30,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 11:16:30,804 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 11:16:30,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:16:30,805 INFO L225 Difference]: With dead ends: 37 [2018-11-28 11:16:30,805 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 11:16:30,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:16:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 11:16:30,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 11:16:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 11:16:30,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 11:16:30,811 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 23 [2018-11-28 11:16:30,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:16:30,812 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 11:16:30,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 11:16:30,812 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 11:16:30,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 11:16:30,812 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:16:30,812 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:16:30,813 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:16:30,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:16:30,813 INFO L82 PathProgramCache]: Analyzing trace with hash -752265653, now seen corresponding path program 1 times [2018-11-28 11:16:30,813 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:16:30,813 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 11:16:30,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:16:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:16:30,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:16:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:16:30,928 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:16:30,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:16:30,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 11:16:30,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:16:30,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:16:30,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:16:30,936 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 7 states. [2018-11-28 11:16:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:16:31,137 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-28 11:16:31,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 11:16:31,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-28 11:16:31,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:16:31,138 INFO L225 Difference]: With dead ends: 28 [2018-11-28 11:16:31,138 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:16:31,139 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 11:16:31,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:16:31,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:16:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:16:31,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:16:31,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-28 11:16:31,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:16:31,140 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:16:31,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:16:31,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:16:31,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:16:31,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:16:31,318 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 44) no Hoare annotation was computed. [2018-11-28 11:16:31,318 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 44) the Hoare annotation is: true [2018-11-28 11:16:31,318 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 44) no Hoare annotation was computed. [2018-11-28 11:16:31,319 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:16:31,319 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:16:31,319 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:16:31,319 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:16:31,319 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:16:31,319 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:16:31,319 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:16:31,319 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2018-11-28 11:16:31,319 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 46 62) the Hoare annotation is: true [2018-11-28 11:16:31,319 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 46 62) no Hoare annotation was computed. [2018-11-28 11:16:31,320 INFO L448 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-11-28 11:16:31,320 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 46 62) no Hoare annotation was computed. [2018-11-28 11:16:31,320 INFO L444 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 .cse0) (= main_~x~0 .cse0))) [2018-11-28 11:16:31,320 INFO L448 ceAbstractionStarter]: For program point L56-1(lines 56 59) no Hoare annotation was computed. [2018-11-28 11:16:31,320 INFO L444 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-28 11:16:31,320 INFO L448 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-11-28 11:16:31,320 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-11-28 11:16:31,320 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-11-28 11:16:31,321 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-11-28 11:16:31,321 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-11-28 11:16:31,321 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-28 11:16:31,321 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-28 11:16:31,321 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-28 11:16:31,321 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-11-28 11:16:31,321 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-11-28 11:16:31,322 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-28 11:16:31,322 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-28 11:16:31,322 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-28 11:16:31,322 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2018-11-28 11:16:31,322 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-28 11:16:31,326 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,328 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,332 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,333 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,333 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,334 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,335 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,335 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,335 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,336 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,336 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,336 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,336 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:16:31 BoogieIcfgContainer [2018-11-28 11:16:31,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:16:31,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:16:31,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:16:31,340 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:16:31,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:30" (3/4) ... [2018-11-28 11:16:31,343 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:16:31,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 11:16:31,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:16:31,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:16:31,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-28 11:16:31,353 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-28 11:16:31,353 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 11:16:31,354 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 11:16:31,372 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 11:16:31,372 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-28 11:16:31,373 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-28 11:16:31,387 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_78092695-f410-49a1-a324-52c81bba4261/bin-2019/uautomizer/witness.graphml [2018-11-28 11:16:31,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:16:31,388 INFO L168 Benchmark]: Toolchain (without parser) took 1818.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 944.7 MB in the beginning and 995.6 MB in the end (delta: -50.9 MB). Peak memory consumption was 109.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:31,389 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:16:31,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.23 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:31,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.89 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:31,390 INFO L168 Benchmark]: Boogie Preprocessor took 20.39 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:16:31,390 INFO L168 Benchmark]: RCFGBuilder took 293.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:31,390 INFO L168 Benchmark]: TraceAbstraction took 1264.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 127.9 MB). Peak memory consumption was 127.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:31,391 INFO L168 Benchmark]: Witness Printer took 47.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:16:31,392 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.23 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.89 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.39 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 293.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1264.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 127.9 MB). Peak memory consumption was 127.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.6 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 57]: 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: 24]: Loop Invariant [2018-11-28 11:16:31,397 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,397 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,397 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,397 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,398 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,398 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,398 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,398 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,399 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,399 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,399 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,399 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,399 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,399 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,400 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,400 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-11-28 11:16:31,401 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,401 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,401 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,401 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,401 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,401 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,402 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,402 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,402 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,402 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,403 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,403 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,403 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,403 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,403 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 11:16:31,403 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 50 SDslu, 220 SDs, 0 SdLazy, 84 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 134 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 9 QuantifiedInterpolants, 7602 SizeOfPredicates, 10 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...