./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 2fdd6b263368afa8ce8882c7fab6c0f595a3666c ................................................................................................................................................................................................................................................................................... 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/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 2fdd6b263368afa8ce8882c7fab6c0f595a3666c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:24:35,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:24:35,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:24:35,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:24:35,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:24:35,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:24:35,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:24:35,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:24:35,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:24:35,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:24:35,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:24:35,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:24:35,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:24:35,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:24:35,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:24:35,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:24:35,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:24:35,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:24:35,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:24:35,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:24:35,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:24:35,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:24:35,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:24:35,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:24:35,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:24:35,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:24:35,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:24:35,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:24:35,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:24:35,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:24:35,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:24:35,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:24:35,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:24:35,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:24:35,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:24:35,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:24:35,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:24:35,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:24:35,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:24:35,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:24:35,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:24:35,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:24:35,202 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:24:35,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:24:35,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:24:35,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:24:35,204 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:24:35,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:24:35,205 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:24:35,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:24:35,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:24:35,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:24:35,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:24:35,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:24:35,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:24:35,208 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:24:35,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:24:35,209 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:24:35,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:24:35,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:24:35,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:24:35,210 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:24:35,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:24:35,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:24:35,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:24:35,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:24:35,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:24:35,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:24:35,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:24:35,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:24:35,212 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/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2019-11-20 04:24:35,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:24:35,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:24:35,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:24:35,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:24:35,439 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:24:35,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2019-11-20 04:24:35,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/2d7cb4934/1d72a470c5c746e0a3f03f2fcdfdacff/FLAGfec52a483 [2019-11-20 04:24:35,876 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:24:35,877 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2019-11-20 04:24:35,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/2d7cb4934/1d72a470c5c746e0a3f03f2fcdfdacff/FLAGfec52a483 [2019-11-20 04:24:36,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/2d7cb4934/1d72a470c5c746e0a3f03f2fcdfdacff [2019-11-20 04:24:36,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:24:36,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:24:36,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:24:36,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:24:36,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:24:36,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfcba3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36, skipping insertion in model container [2019-11-20 04:24:36,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,257 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:24:36,279 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:24:36,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:24:36,602 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:24:36,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:24:36,662 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:24:36,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36 WrapperNode [2019-11-20 04:24:36,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:24:36,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:24:36,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:24:36,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:24:36,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:24:36,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:24:36,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:24:36,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:24:36,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... [2019-11-20 04:24:36,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:24:36,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:24:36,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:24:36,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:24:36,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 [2019-11-20 04:24:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:24:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 04:24:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:24:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 04:24:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:24:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:24:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:24:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:24:37,280 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:24:37,281 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 04:24:37,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:24:37 BoogieIcfgContainer [2019-11-20 04:24:37,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:24:37,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:24:37,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:24:37,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:24:37,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:24:36" (1/3) ... [2019-11-20 04:24:37,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3d24b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:24:37, skipping insertion in model container [2019-11-20 04:24:37,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:36" (2/3) ... [2019-11-20 04:24:37,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3d24b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:24:37, skipping insertion in model container [2019-11-20 04:24:37,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:24:37" (3/3) ... [2019-11-20 04:24:37,290 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2019-11-20 04:24:37,300 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:24:37,307 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:24:37,318 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:24:37,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:24:37,343 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:24:37,343 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:24:37,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:24:37,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:24:37,344 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:24:37,344 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:24:37,344 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:24:37,360 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 04:24:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:24:37,366 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:24:37,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:24:37,367 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:24:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:24:37,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2019-11-20 04:24:37,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:24:37,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627626492] [2019-11-20 04:24:37,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:24:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:24:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:37,495 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627626492] [2019-11-20 04:24:37,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:24:37,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:24:37,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106525025] [2019-11-20 04:24:37,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:24:37,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:24:37,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:24:37,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:24:37,513 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 04:24:37,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:24:37,535 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 04:24:37,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:24:37,536 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 04:24:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:24:37,545 INFO L225 Difference]: With dead ends: 72 [2019-11-20 04:24:37,546 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 04:24:37,549 INFO L630 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 [2019-11-20 04:24:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 04:24:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 04:24:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 04:24:37,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 04:24:37,588 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2019-11-20 04:24:37,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:24:37,589 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 04:24:37,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:24:37,589 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 04:24:37,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:24:37,590 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:24:37,590 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:24:37,590 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:24:37,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:24:37,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2019-11-20 04:24:37,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:24:37,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404205697] [2019-11-20 04:24:37,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:24:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:24:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:24:37,678 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:24:37,678 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 04:24:37,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:24:37 BoogieIcfgContainer [2019-11-20 04:24:37,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:24:37,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:24:37,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:24:37,708 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:24:37,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:24:37" (3/4) ... [2019-11-20 04:24:37,713 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:24:37,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:24:37,716 INFO L168 Benchmark]: Toolchain (without parser) took 1473.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -121.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:37,716 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:24:37,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:37,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.40 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:37,718 INFO L168 Benchmark]: Boogie Preprocessor took 36.84 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. [2019-11-20 04:24:37,719 INFO L168 Benchmark]: RCFGBuilder took 529.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:37,720 INFO L168 Benchmark]: TraceAbstraction took 424.59 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:37,720 INFO L168 Benchmark]: Witness Printer took 5.23 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. [2019-11-20 04:24:37,724 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 421.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.40 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.84 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. * RCFGBuilder took 529.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 424.59 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.23 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: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someUnaryFLOAToperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = -0.0f; [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (ix) = gf_u.word [L24] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L105] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L106] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 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=37occurred 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 0.1.24-678e011 [2019-11-20 04:24:39,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:24:39,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:24:40,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:24:40,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:24:40,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:24:40,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:24:40,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:24:40,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:24:40,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:24:40,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:24:40,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:24:40,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:24:40,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:24:40,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:24:40,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:24:40,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:24:40,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:24:40,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:24:40,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:24:40,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:24:40,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:24:40,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:24:40,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:24:40,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:24:40,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:24:40,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:24:40,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:24:40,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:24:40,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:24:40,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:24:40,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:24:40,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:24:40,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:24:40,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:24:40,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:24:40,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:24:40,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:24:40,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:24:40,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:24:40,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:24:40,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 04:24:40,104 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:24:40,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:24:40,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:24:40,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:24:40,106 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:24:40,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:24:40,106 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:24:40,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:24:40,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:24:40,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:24:40,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:24:40,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:24:40,108 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:24:40,108 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:24:40,108 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:24:40,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:24:40,109 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:24:40,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:24:40,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:24:40,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:24:40,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:24:40,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:24:40,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:24:40,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:24:40,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:24:40,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:24:40,120 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:24:40,121 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:24:40,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:24:40,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:24:40,122 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/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2019-11-20 04:24:40,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:24:40,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:24:40,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:24:40,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:24:40,530 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:24:40,531 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2019-11-20 04:24:40,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/0b6f5b804/de27fef41b2044d7a6702c291ed130b9/FLAG939d4bb89 [2019-11-20 04:24:41,004 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:24:41,005 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2019-11-20 04:24:41,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/0b6f5b804/de27fef41b2044d7a6702c291ed130b9/FLAG939d4bb89 [2019-11-20 04:24:41,394 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/data/0b6f5b804/de27fef41b2044d7a6702c291ed130b9 [2019-11-20 04:24:41,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:24:41,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:24:41,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:24:41,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:24:41,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:24:41,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3547b6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41, skipping insertion in model container [2019-11-20 04:24:41,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,417 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:24:41,439 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:24:41,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:24:41,670 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:24:41,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:24:41,830 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:24:41,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41 WrapperNode [2019-11-20 04:24:41,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:24:41,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:24:41,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:24:41,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:24:41,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:24:41,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:24:41,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:24:41,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:24:41,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... [2019-11-20 04:24:41,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:24:41,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:24:41,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:24:41,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:24:41,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 [2019-11-20 04:24:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:24:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 04:24:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:24:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:24:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:24:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 04:24:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:24:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:24:43,104 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:24:43,105 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 04:24:43,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:24:43 BoogieIcfgContainer [2019-11-20 04:24:43,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:24:43,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:24:43,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:24:43,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:24:43,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:24:41" (1/3) ... [2019-11-20 04:24:43,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d439a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:24:43, skipping insertion in model container [2019-11-20 04:24:43,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:24:41" (2/3) ... [2019-11-20 04:24:43,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d439a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:24:43, skipping insertion in model container [2019-11-20 04:24:43,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:24:43" (3/3) ... [2019-11-20 04:24:43,113 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2019-11-20 04:24:43,122 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:24:43,128 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:24:43,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:24:43,162 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:24:43,163 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:24:43,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:24:43,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:24:43,163 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:24:43,163 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:24:43,163 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:24:43,163 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:24:43,177 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 04:24:43,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:24:43,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:24:43,184 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:24:43,184 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:24:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:24:43,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2019-11-20 04:24:43,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:24:43,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802474657] [2019-11-20 04:24:43,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 [2019-11-20 04:24:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:24:43,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 04:24:43,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:24:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:43,372 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:24:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:43,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802474657] [2019-11-20 04:24:43,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:24:43,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 04:24:43,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002394077] [2019-11-20 04:24:43,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:24:43,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:24:43,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:24:43,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:24:43,398 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 04:24:43,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:24:43,416 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 04:24:43,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:24:43,418 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 04:24:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:24:43,428 INFO L225 Difference]: With dead ends: 72 [2019-11-20 04:24:43,428 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 04:24:43,431 INFO L630 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 [2019-11-20 04:24:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 04:24:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 04:24:43,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 04:24:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 04:24:43,467 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2019-11-20 04:24:43,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:24:43,467 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 04:24:43,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:24:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 04:24:43,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:24:43,468 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:24:43,468 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:24:43,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 04:24:43,682 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:24:43,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:24:43,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2019-11-20 04:24:43,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:24:43,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631773527] [2019-11-20 04:24:43,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 [2019-11-20 04:24:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:24:43,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:24:43,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:24:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:43,958 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:24:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:44,050 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631773527] [2019-11-20 04:24:44,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:24:44,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 04:24:44,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981733025] [2019-11-20 04:24:44,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:24:44,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:24:44,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:24:44,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:24:44,053 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-20 04:24:44,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:24:44,141 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-11-20 04:24:44,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:24:44,142 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-11-20 04:24:44,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:24:44,143 INFO L225 Difference]: With dead ends: 43 [2019-11-20 04:24:44,143 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 04:24:44,145 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:24:44,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 04:24:44,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 04:24:44,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 04:24:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-20 04:24:44,157 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2019-11-20 04:24:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:24:44,158 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-20 04:24:44,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:24:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-20 04:24:44,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 04:24:44,160 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:24:44,164 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:24:44,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 04:24:44,365 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:24:44,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:24:44,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2019-11-20 04:24:44,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:24:44,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577249236] [2019-11-20 04:24:44,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/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 [2019-11-20 04:24:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:24:44,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:24:44,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:24:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:44,475 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:24:44,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:24:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:44,523 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577249236] [2019-11-20 04:24:44,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:24:44,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 04:24:44,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971343428] [2019-11-20 04:24:44,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:24:44,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:24:44,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:24:44,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:24:44,525 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2019-11-20 04:24:44,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:24:44,589 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-20 04:24:44,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:24:44,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-11-20 04:24:44,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:24:44,591 INFO L225 Difference]: With dead ends: 19 [2019-11-20 04:24:44,591 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 04:24:44,592 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:24:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 04:24:44,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 04:24:44,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 04:24:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-11-20 04:24:44,596 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2019-11-20 04:24:44,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:24:44,596 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-11-20 04:24:44,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:24:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-11-20 04:24:44,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 04:24:44,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:24:44,598 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:24:44,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 04:24:44,810 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:24:44,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:24:44,811 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2019-11-20 04:24:44,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:24:44,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841263342] [2019-11-20 04:24:44,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 04:24:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:24:44,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 04:24:44,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:24:44,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:24:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:45,003 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:24:45,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:24:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:24:45,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841263342] [2019-11-20 04:24:45,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:24:45,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-20 04:24:45,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073475263] [2019-11-20 04:24:45,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 04:24:45,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:24:45,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 04:24:45,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-20 04:24:45,316 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2019-11-20 04:24:45,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:24:45,583 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-11-20 04:24:45,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:24:45,584 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-11-20 04:24:45,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:24:45,585 INFO L225 Difference]: With dead ends: 16 [2019-11-20 04:24:45,585 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:24:45,586 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-20 04:24:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:24:45,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:24:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:24:45,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:24:45,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 04:24:45,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:24:45,587 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:24:45,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 04:24:45,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:24:45,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:24:45,798 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 04:24:45,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:24:45,976 INFO L444 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2019-11-20 04:24:45,976 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2019-11-20 04:24:45,976 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-20 04:24:45,977 INFO L444 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2019-11-20 04:24:45,977 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24))) [2019-11-20 04:24:45,977 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2019-11-20 04:24:45,977 INFO L447 ceAbstractionStarter]: At program point L110(lines 93 111) the Hoare annotation is: true [2019-11-20 04:24:45,977 INFO L444 ceAbstractionStarter]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2019-11-20 04:24:45,977 INFO L440 ceAbstractionStarter]: At program point L36-3(lines 36 37) the Hoare annotation is: false [2019-11-20 04:24:45,978 INFO L444 ceAbstractionStarter]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2019-11-20 04:24:45,978 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:24:45,978 INFO L444 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-11-20 04:24:45,978 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:24:45,978 INFO L440 ceAbstractionStarter]: At program point L78(lines 14 79) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))))) [2019-11-20 04:24:45,979 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-20 04:24:45,979 INFO L444 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2019-11-20 04:24:45,979 INFO L444 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2019-11-20 04:24:45,979 INFO L444 ceAbstractionStarter]: For program point L105-2(lines 105 108) no Hoare annotation was computed. [2019-11-20 04:24:45,979 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2019-11-20 04:24:45,979 INFO L444 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-20 04:24:45,980 INFO L444 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2019-11-20 04:24:45,980 INFO L440 ceAbstractionStarter]: At program point L73-2(lines 73 77) the Hoare annotation is: false [2019-11-20 04:24:45,980 INFO L444 ceAbstractionStarter]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2019-11-20 04:24:45,980 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-11-20 04:24:45,980 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 04:24:45,981 INFO L440 ceAbstractionStarter]: At program point L90(lines 81 91) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_main_~res~0 .cse0) |ULTIMATE.start_main_#t~short9| (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))))) [2019-11-20 04:24:45,981 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2019-11-20 04:24:45,981 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:24:45,981 INFO L440 ceAbstractionStarter]: At program point L50-2(lines 50 59) the Hoare annotation is: false [2019-11-20 04:24:45,981 INFO L444 ceAbstractionStarter]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2019-11-20 04:24:45,981 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-20 04:24:45,984 INFO L444 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2019-11-20 04:24:45,985 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2019-11-20 04:24:45,991 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-11-20 04:24:45,992 INFO L440 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0) (= ULTIMATE.start_main_~res~0 .cse0) |ULTIMATE.start_main_#t~short9| (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))))) [2019-11-20 04:24:45,992 INFO L444 ceAbstractionStarter]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2019-11-20 04:24:45,993 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-11-20 04:24:45,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,015 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,015 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,021 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,022 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,022 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,023 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,024 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,024 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,025 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,025 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,031 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:24:46 BoogieIcfgContainer [2019-11-20 04:24:46,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:24:46,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:24:46,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:24:46,060 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:24:46,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:24:43" (3/4) ... [2019-11-20 04:24:46,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:24:46,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-20 04:24:46,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 04:24:46,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:24:46,125 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx) [2019-11-20 04:24:46,127 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx) [2019-11-20 04:24:46,129 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx) [2019-11-20 04:24:46,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_26934517-7356-4351-a701-78057cebd2ed/bin/uautomizer/witness.graphml [2019-11-20 04:24:46,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:24:46,194 INFO L168 Benchmark]: Toolchain (without parser) took 4794.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 961.8 MB in the beginning and 910.1 MB in the end (delta: 51.7 MB). Peak memory consumption was 162.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:46,195 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:24:46,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:46,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.36 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:46,196 INFO L168 Benchmark]: Boogie Preprocessor took 75.50 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. [2019-11-20 04:24:46,197 INFO L168 Benchmark]: RCFGBuilder took 1127.59 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:46,197 INFO L168 Benchmark]: TraceAbstraction took 2951.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 916.8 MB in the end (delta: 151.1 MB). Peak memory consumption was 151.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:46,198 INFO L168 Benchmark]: Witness Printer took 132.86 ms. Allocated memory is still 1.1 GB. Free memory was 916.8 MB in the beginning and 910.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:24:46,201 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.36 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.50 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 1127.59 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2951.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 916.8 MB in the end (delta: 151.1 MB). Peak memory consumption was 151.1 MB. Max. memory is 11.5 GB. * Witness Printer took 132.86 ms. Allocated memory is still 1.1 GB. Free memory was 916.8 MB in the beginning and 910.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 81]: Loop Invariant [2019-11-20 04:24:46,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,214 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,214 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,215 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,216 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,216 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,216 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant [2019-11-20 04:24:46,218 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,220 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx) - InvariantResult [Line: 14]: Loop Invariant [2019-11-20 04:24:46,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,225 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,225 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:24:46,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx) - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 77 SDtfs, 114 SDslu, 55 SDs, 0 SdLazy, 51 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 149 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4553 SizeOfPredicates, 22 NumberOfNonLiveVariables, 128 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...