./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 2099bda96984d0e4445a07fd627008694b409440 ....................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 2099bda96984d0e4445a07fd627008694b409440 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:14,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:14,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:14,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:14,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:14,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:14,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:14,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:14,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:14,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:14,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:14,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:14,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:14,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:14,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:14,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:14,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:14,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:14,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:14,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:14,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:14,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:14,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:14,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:14,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:14,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:14,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:14,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:14,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:14,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:14,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:14,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:14,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:14,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:14,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:14,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:14,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:14,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:14,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:14,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:14,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:14,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:14,211 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:14,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:14,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:14,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:14,218 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:14,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:14,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:14,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:14,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:14,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:14,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:14,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:14,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:14,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:14,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:14,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:14,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:14,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:14,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:14,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:14,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:14,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:14,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:14,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:14,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:14,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:14,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:14,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:14,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2019-10-22 08:57:14,258 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:14,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:14,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:14,275 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:14,276 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:14,276 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-10-22 08:57:14,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/fa002c878/f04f1d1d70a14a768c45fadf4733ec0f/FLAG054c2eab3 [2019-10-22 08:57:14,723 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:14,724 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-10-22 08:57:14,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/fa002c878/f04f1d1d70a14a768c45fadf4733ec0f/FLAG054c2eab3 [2019-10-22 08:57:14,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/fa002c878/f04f1d1d70a14a768c45fadf4733ec0f [2019-10-22 08:57:14,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:14,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:14,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:14,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:14,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:14,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:14" (1/1) ... [2019-10-22 08:57:14,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634f6d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:14, skipping insertion in model container [2019-10-22 08:57:14,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:14" (1/1) ... [2019-10-22 08:57:14,761 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:14,779 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:15,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:15,020 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:15,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:15,079 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:15,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15 WrapperNode [2019-10-22 08:57:15,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:15,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:15,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:15,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:15,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:15,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:15,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:15,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:15,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:15,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:15,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:15,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:15,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 [2019-10-22 08:57:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:57:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 08:57:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:15,663 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:15,664 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-10-22 08:57:15,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:15 BoogieIcfgContainer [2019-10-22 08:57:15,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:15,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:15,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:15,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:15,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:14" (1/3) ... [2019-10-22 08:57:15,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b75928e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:15, skipping insertion in model container [2019-10-22 08:57:15,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (2/3) ... [2019-10-22 08:57:15,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b75928e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:15, skipping insertion in model container [2019-10-22 08:57:15,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:15" (3/3) ... [2019-10-22 08:57:15,684 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-10-22 08:57:15,696 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:15,709 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:15,722 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:15,750 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:15,751 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:15,751 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:15,751 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:15,752 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:15,752 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:15,752 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:15,752 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-22 08:57:15,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:57:15,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:15,784 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:15,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:15,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-10-22 08:57:15,805 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:15,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251414499] [2019-10-22 08:57:15,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:15,914 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251414499] [2019-10-22 08:57:15,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:15,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:15,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52695954] [2019-10-22 08:57:15,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:15,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:15,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:15,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:15,937 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-10-22 08:57:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:15,958 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-10-22 08:57:15,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:15,960 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 08:57:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:15,971 INFO L225 Difference]: With dead ends: 64 [2019-10-22 08:57:15,971 INFO L226 Difference]: Without dead ends: 30 [2019-10-22 08:57:15,975 INFO L600 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 [2019-10-22 08:57:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-22 08:57:16,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-10-22 08:57:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 08:57:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-10-22 08:57:16,013 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-10-22 08:57:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:16,014 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-10-22 08:57:16,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-10-22 08:57:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:57:16,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:16,015 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:16,015 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:16,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:16,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-10-22 08:57:16,016 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:16,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083324060] [2019-10-22 08:57:16,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:16,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:16,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:16,098 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:16,098 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:16,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:16 BoogieIcfgContainer [2019-10-22 08:57:16,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:16,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:16,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:16,131 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:16,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:15" (3/4) ... [2019-10-22 08:57:16,136 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:16,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:16,139 INFO L168 Benchmark]: Toolchain (without parser) took 1392.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,139 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:16,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.56 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,140 INFO L168 Benchmark]: Boogie Preprocessor took 53.78 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,141 INFO L168 Benchmark]: RCFGBuilder took 482.16 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,141 INFO L168 Benchmark]: TraceAbstraction took 463.09 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,142 INFO L168 Benchmark]: Witness Printer took 5.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:16,146 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 333.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.56 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.78 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 482.16 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 463.09 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = 0.0f / 0.0f; [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] float res = __ieee754_sqrtf(x); [L13] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] COND TRUE !isnan_float(res) [L96] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 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=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 DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-cad4683 [2019-10-22 08:57:18,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:18,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:18,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:18,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:18,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:18,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:18,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:18,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:18,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:18,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:18,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:18,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:18,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:18,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:18,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:18,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:18,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:18,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:18,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:18,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:18,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:18,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:18,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:18,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:18,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:18,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:18,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:18,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:18,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:18,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:18,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:18,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:18,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:18,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:18,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:18,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:18,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:18,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:18,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:18,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:18,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:57:18,434 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:18,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:18,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:18,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:18,436 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:18,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:18,436 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:18,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:18,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:18,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:18,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:18,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:18,437 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:57:18,437 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:57:18,439 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:18,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:18,439 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:18,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:18,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:18,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:18,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:18,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:18,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:18,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:18,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:18,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:18,441 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:57:18,441 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:57:18,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:18,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:57:18,441 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2019-10-22 08:57:18,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:18,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:18,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:18,494 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:18,494 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:18,495 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-10-22 08:57:18,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/c5cf85ee5/70837b1eb965446fa1b9ed576bb15a6c/FLAGd1e9cc7a8 [2019-10-22 08:57:18,903 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:18,903 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-10-22 08:57:18,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/c5cf85ee5/70837b1eb965446fa1b9ed576bb15a6c/FLAGd1e9cc7a8 [2019-10-22 08:57:19,303 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/data/c5cf85ee5/70837b1eb965446fa1b9ed576bb15a6c [2019-10-22 08:57:19,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:19,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:19,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:19,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:19,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:19,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c86f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19, skipping insertion in model container [2019-10-22 08:57:19,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,327 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:19,346 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:19,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:19,533 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:19,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:19,618 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:19,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19 WrapperNode [2019-10-22 08:57:19,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:19,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:19,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:19,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:19,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:19,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:19,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:19,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:19,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:19,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:19,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:19,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:19,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 [2019-10-22 08:57:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 08:57:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:57:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 08:57:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:57:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:20,626 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:20,627 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-10-22 08:57:20,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:20 BoogieIcfgContainer [2019-10-22 08:57:20,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:20,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:20,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:20,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:20,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:19" (1/3) ... [2019-10-22 08:57:20,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cf9171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:20, skipping insertion in model container [2019-10-22 08:57:20,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (2/3) ... [2019-10-22 08:57:20,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cf9171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:20, skipping insertion in model container [2019-10-22 08:57:20,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:20" (3/3) ... [2019-10-22 08:57:20,635 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-10-22 08:57:20,644 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:20,650 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:20,659 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:20,677 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:20,677 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:20,677 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:20,677 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:20,678 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:20,678 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:20,678 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:20,678 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-22 08:57:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:57:20,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,696 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:20,698 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-10-22 08:57:20,712 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:20,712 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307029228] [2019-10-22 08:57:20,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 [2019-10-22 08:57:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 08:57:20,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:20,875 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:20,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307029228] [2019-10-22 08:57:20,881 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:57:20,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109510809] [2019-10-22 08:57:20,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:20,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:20,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:20,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:20,902 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-10-22 08:57:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:20,921 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-10-22 08:57:20,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:20,922 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 08:57:20,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:20,933 INFO L225 Difference]: With dead ends: 64 [2019-10-22 08:57:20,933 INFO L226 Difference]: Without dead ends: 30 [2019-10-22 08:57:20,936 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:20,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-22 08:57:20,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-10-22 08:57:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 08:57:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-10-22 08:57:20,969 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-10-22 08:57:20,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:20,970 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-10-22 08:57:20,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-10-22 08:57:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:57:20,970 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,971 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:21,171 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:57:21,172 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:21,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:21,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-10-22 08:57:21,172 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:21,172 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246419731] [2019-10-22 08:57:21,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 [2019-10-22 08:57:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:21,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:57:21,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:21,380 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:24,063 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-10-22 08:57:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:24,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246419731] [2019-10-22 08:57:24,074 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:24,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-10-22 08:57:24,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712181530] [2019-10-22 08:57:24,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:57:24,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:24,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:57:24,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:24,077 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 9 states. [2019-10-22 08:57:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:24,850 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-10-22 08:57:24,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:24,851 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-10-22 08:57:24,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:24,852 INFO L225 Difference]: With dead ends: 35 [2019-10-22 08:57:24,852 INFO L226 Difference]: Without dead ends: 30 [2019-10-22 08:57:24,853 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:57:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-22 08:57:24,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-10-22 08:57:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 08:57:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-10-22 08:57:24,858 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2019-10-22 08:57:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:24,858 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-10-22 08:57:24,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:57:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-10-22 08:57:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:57:24,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:24,860 INFO L380 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] [2019-10-22 08:57:25,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 08:57:25,061 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:25,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:25,061 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2019-10-22 08:57:25,062 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:25,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410637778] [2019-10-22 08:57:25,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/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 [2019-10-22 08:57:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:25,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:57:25,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:25,172 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:25,240 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410637778] [2019-10-22 08:57:25,240 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:25,240 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 08:57:25,240 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276390040] [2019-10-22 08:57:25,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:57:25,241 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:25,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:57:25,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:25,242 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2019-10-22 08:57:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:25,292 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-10-22 08:57:25,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:25,292 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-10-22 08:57:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:25,292 INFO L225 Difference]: With dead ends: 30 [2019-10-22 08:57:25,293 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:57:25,293 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:57:25,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:57:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:57:25,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:57:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:57:25,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-22 08:57:25,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:25,295 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:25,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:57:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:25,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:57:25,502 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 08:57:25,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:57:25,571 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:57:25,571 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:57:25,571 INFO L439 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: false [2019-10-22 08:57:25,571 INFO L443 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2019-10-22 08:57:25,571 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-10-22 08:57:25,571 INFO L443 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-10-22 08:57:25,572 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2019-10-22 08:57:25,572 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-10-22 08:57:25,572 INFO L439 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|))) [2019-10-22 08:57:25,572 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2019-10-22 08:57:25,572 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2019-10-22 08:57:25,572 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2019-10-22 08:57:25,573 INFO L443 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2019-10-22 08:57:25,573 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2019-10-22 08:57:25,573 INFO L443 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2019-10-22 08:57:25,573 INFO L443 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2019-10-22 08:57:25,573 INFO L439 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-10-22 08:57:25,573 INFO L443 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2019-10-22 08:57:25,573 INFO L443 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2019-10-22 08:57:25,573 INFO L439 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: false [2019-10-22 08:57:25,574 INFO L443 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2019-10-22 08:57:25,575 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2019-10-22 08:57:25,575 INFO L439 ceAbstractionStarter]: At program point L81(lines 17 82) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0))) [2019-10-22 08:57:25,575 INFO L443 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2019-10-22 08:57:25,575 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:57:25,575 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2019-10-22 08:57:25,575 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:57:25,576 INFO L446 ceAbstractionStarter]: At program point L100(lines 84 101) the Hoare annotation is: true [2019-10-22 08:57:25,576 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-10-22 08:57:25,576 INFO L443 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-10-22 08:57:25,576 INFO L439 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-10-22 08:57:25,576 INFO L443 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2019-10-22 08:57:25,576 INFO L443 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2019-10-22 08:57:25,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,594 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,594 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,594 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,594 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,599 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,599 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:25 BoogieIcfgContainer [2019-10-22 08:57:25,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:25,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:25,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:25,602 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:25,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:20" (3/4) ... [2019-10-22 08:57:25,605 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:57:25,615 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 08:57:25,615 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 08:57:25,640 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-10-22 08:57:25,640 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-10-22 08:57:25,677 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_394ff5b0-3361-4616-89ed-a4a6dbea1946/bin/uautomizer/witness.graphml [2019-10-22 08:57:25,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:25,681 INFO L168 Benchmark]: Toolchain (without parser) took 6373.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 951.0 MB in the beginning and 961.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:25,681 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:25,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:25,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:25,682 INFO L168 Benchmark]: Boogie Preprocessor took 33.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:25,682 INFO L168 Benchmark]: RCFGBuilder took 870.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:25,682 INFO L168 Benchmark]: TraceAbstraction took 4972.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 961.6 MB in the end (delta: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:25,682 INFO L168 Benchmark]: Witness Printer took 78.10 ms. Allocated memory is still 1.1 GB. Free memory is still 961.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:25,684 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 104.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 870.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4972.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 961.6 MB in the end (delta: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. * Witness Printer took 78.10 ms. Allocated memory is still 1.1 GB. Free memory is still 961.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-10-22 08:57:25,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 13]: Loop Invariant [2019-10-22 08:57:25,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-10-22 08:57:25,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:25,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 45 SDslu, 172 SDs, 0 SdLazy, 43 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s 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 DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 63 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 2 QuantifiedInterpolants, 4169 SizeOfPredicates, 14 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...