./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 9c71a459772bdb184fdc6408fbdfc05dbcf613bc .................................................................................................................................................................................................................................................................................... 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_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 9c71a459772bdb184fdc6408fbdfc05dbcf613bc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:50:09,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:50:09,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:50:09,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:50:09,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:50:09,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:50:09,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:50:09,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:50:09,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:50:09,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:50:09,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:50:09,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:50:09,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:50:09,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:50:09,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:50:09,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:50:09,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:50:09,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:50:09,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:50:09,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:50:09,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:50:09,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:50:09,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:50:09,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:50:09,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:50:09,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:50:09,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:50:09,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:50:09,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:50:09,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:50:09,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:50:09,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:50:09,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:50:09,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:50:09,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:50:09,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:50:09,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:50:09,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:50:09,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:50:09,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:50:09,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:50:09,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 11:50:09,995 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:50:09,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:50:09,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:50:09,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:50:09,997 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:50:09,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:50:09,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:50:09,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:50:09,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:50:09,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:50:09,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:50:09,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:50:09,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:50:09,998 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:50:09,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:50:09,999 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:50:09,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:50:09,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:50:10,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:50:10,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:50:10,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:50:10,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:50:10,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:50:10,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:50:10,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:50:10,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:50:10,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:50:10,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:50:10,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:50:10,002 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_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2019-12-07 11:50:10,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:50:10,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:50:10,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:50:10,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:50:10,124 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:50:10,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 11:50:10,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/8d1fc7b62/a852250131624b2583b77c49d9cd2255/FLAG769135c20 [2019-12-07 11:50:10,581 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:50:10,581 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 11:50:10,586 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/8d1fc7b62/a852250131624b2583b77c49d9cd2255/FLAG769135c20 [2019-12-07 11:50:10,595 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/8d1fc7b62/a852250131624b2583b77c49d9cd2255 [2019-12-07 11:50:10,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:50:10,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:50:10,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:10,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:50:10,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:50:10,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6e5914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10, skipping insertion in model container [2019-12-07 11:50:10,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:50:10,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:50:10,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:10,778 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:50:10,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:10,813 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:50:10,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10 WrapperNode [2019-12-07 11:50:10,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:10,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:50:10,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:50:10,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:50:10,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:50:10,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:50:10,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:50:10,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:50:10,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... [2019-12-07 11:50:10,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:50:10,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:50:10,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:50:10,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:50:10,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 [2019-12-07 11:50:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:50:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 11:50:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:50:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 11:50:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:50:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:50:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:50:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:50:11,092 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:50:11,092 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 11:50:11,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:11 BoogieIcfgContainer [2019-12-07 11:50:11,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:50:11,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:50:11,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:50:11,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:50:11,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:50:10" (1/3) ... [2019-12-07 11:50:11,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b9718c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:50:11, skipping insertion in model container [2019-12-07 11:50:11,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:10" (2/3) ... [2019-12-07 11:50:11,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b9718c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:50:11, skipping insertion in model container [2019-12-07 11:50:11,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:11" (3/3) ... [2019-12-07 11:50:11,099 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2019-12-07 11:50:11,105 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:50:11,109 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:50:11,116 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:50:11,132 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:50:11,132 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:50:11,132 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:50:11,132 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:50:11,132 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:50:11,132 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:50:11,133 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:50:11,133 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:50:11,147 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-12-07 11:50:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 11:50:11,151 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:11,152 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:11,152 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:11,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:11,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2019-12-07 11:50:11,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:50:11,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714766041] [2019-12-07 11:50:11,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:50:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:11,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714766041] [2019-12-07 11:50:11,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:11,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 11:50:11,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147350604] [2019-12-07 11:50:11,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:50:11,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:50:11,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:50:11,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:50:11,251 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-12-07 11:50:11,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:11,265 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-12-07 11:50:11,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:50:11,266 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 11:50:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:11,275 INFO L225 Difference]: With dead ends: 72 [2019-12-07 11:50:11,275 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 11:50:11,278 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 [2019-12-07 11:50:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 11:50:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 11:50:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 11:50:11,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-12-07 11:50:11,303 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2019-12-07 11:50:11,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:11,303 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-12-07 11:50:11,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:50:11,303 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-12-07 11:50:11,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 11:50:11,303 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:11,304 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:11,304 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:11,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:11,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2019-12-07 11:50:11,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:50:11,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443540543] [2019-12-07 11:50:11,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:50:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:50:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:50:11,353 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:50:11,353 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:50:11,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:50:11 BoogieIcfgContainer [2019-12-07 11:50:11,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:50:11,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:50:11,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:50:11,372 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:50:11,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:11" (3/4) ... [2019-12-07 11:50:11,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:50:11,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:50:11,376 INFO L168 Benchmark]: Toolchain (without parser) took 778.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -104.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:11,376 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:50:11,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:11,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.38 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. [2019-12-07 11:50:11,377 INFO L168 Benchmark]: Boogie Preprocessor took 19.88 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:11,378 INFO L168 Benchmark]: RCFGBuilder took 231.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:11,378 INFO L168 Benchmark]: TraceAbstraction took 277.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:11,379 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:50:11,381 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.38 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. * Boogie Preprocessor took 19.88 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 231.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 277.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 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) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L105] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [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: 0.2s, 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 0.1.25-f470102 [2019-12-07 11:50:12,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:50:12,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:50:12,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:50:12,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:50:12,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:50:12,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:50:12,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:50:12,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:50:12,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:50:12,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:50:12,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:50:12,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:50:12,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:50:12,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:50:12,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:50:12,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:50:12,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:50:12,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:50:12,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:50:12,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:50:12,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:50:12,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:50:12,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:50:12,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:50:12,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:50:12,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:50:12,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:50:12,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:50:12,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:50:12,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:50:12,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:50:12,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:50:12,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:50:12,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:50:12,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:50:12,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:50:12,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:50:12,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:50:12,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:50:12,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:50:12,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 11:50:12,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:50:12,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:50:12,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:50:12,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:50:12,740 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:50:12,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:50:12,740 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:50:12,741 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:50:12,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:50:12,742 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:50:12,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:50:12,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:50:12,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:50:12,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:50:12,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:50:12,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:50:12,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:50:12,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:50:12,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:50:12,743 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 11:50:12,743 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:50:12,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:50:12,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:50:12,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:50:12,744 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_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2019-12-07 11:50:12,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:50:12,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:50:12,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:50:12,931 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:50:12,932 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:50:12,932 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 11:50:12,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/40fef21e2/79c9b40cf5a44fa7911f229dcd6d1aef/FLAG2ab4cce10 [2019-12-07 11:50:13,421 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:50:13,421 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 11:50:13,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/40fef21e2/79c9b40cf5a44fa7911f229dcd6d1aef/FLAG2ab4cce10 [2019-12-07 11:50:13,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/data/40fef21e2/79c9b40cf5a44fa7911f229dcd6d1aef [2019-12-07 11:50:13,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:50:13,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:50:13,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:13,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:50:13,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:50:13,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13, skipping insertion in model container [2019-12-07 11:50:13,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:50:13,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:50:13,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:13,584 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:50:13,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:50:13,624 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:50:13,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13 WrapperNode [2019-12-07 11:50:13,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:50:13,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:50:13,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:50:13,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:50:13,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:50:13,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:50:13,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:50:13,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:50:13,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... [2019-12-07 11:50:13,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:50:13,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:50:13,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:50:13,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:50:13,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 [2019-12-07 11:50:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:50:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 11:50:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:50:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:50:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:50:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 11:50:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:50:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:50:14,320 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:50:14,320 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 11:50:14,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:14 BoogieIcfgContainer [2019-12-07 11:50:14,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:50:14,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:50:14,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:50:14,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:50:14,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:50:13" (1/3) ... [2019-12-07 11:50:14,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3494509f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:50:14, skipping insertion in model container [2019-12-07 11:50:14,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:50:13" (2/3) ... [2019-12-07 11:50:14,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3494509f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:50:14, skipping insertion in model container [2019-12-07 11:50:14,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:14" (3/3) ... [2019-12-07 11:50:14,326 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2019-12-07 11:50:14,332 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:50:14,336 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:50:14,343 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:50:14,358 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:50:14,358 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:50:14,358 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:50:14,359 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:50:14,359 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:50:14,359 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:50:14,359 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:50:14,359 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:50:14,368 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-12-07 11:50:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 11:50:14,372 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:14,373 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:14,373 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:14,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:14,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2019-12-07 11:50:14,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:50:14,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877989716] [2019-12-07 11:50:14,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 [2019-12-07 11:50:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:14,533 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:50:14,536 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:14,546 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:50:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:14,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877989716] [2019-12-07 11:50:14,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:14,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:50:14,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487371765] [2019-12-07 11:50:14,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:50:14,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:50:14,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:50:14,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:50:14,563 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-12-07 11:50:14,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:14,576 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-12-07 11:50:14,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:50:14,577 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 11:50:14,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:14,584 INFO L225 Difference]: With dead ends: 72 [2019-12-07 11:50:14,585 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 11:50:14,586 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 [2019-12-07 11:50:14,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 11:50:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 11:50:14,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 11:50:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-12-07 11:50:14,610 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2019-12-07 11:50:14,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:14,610 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-12-07 11:50:14,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:50:14,610 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-12-07 11:50:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 11:50:14,611 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:14,611 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:14,812 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:50:14,812 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:14,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2019-12-07 11:50:14,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:50:14,814 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293488663] [2019-12-07 11:50:14,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 [2019-12-07 11:50:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:14,989 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:50:14,990 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:15,032 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:50:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:15,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293488663] [2019-12-07 11:50:15,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:15,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 11:50:15,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969273267] [2019-12-07 11:50:15,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:50:15,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:50:15,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:50:15,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:50:15,076 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-12-07 11:50:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:15,127 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-12-07 11:50:15,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:50:15,128 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-12-07 11:50:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:15,129 INFO L225 Difference]: With dead ends: 43 [2019-12-07 11:50:15,129 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 11:50:15,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 11:50:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 11:50:15,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 11:50:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 11:50:15,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-12-07 11:50:15,132 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2019-12-07 11:50:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:15,133 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-12-07 11:50:15,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:50:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-12-07 11:50:15,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:50:15,133 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:15,133 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:15,334 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:50:15,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:15,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2019-12-07 11:50:15,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:50:15,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805681053] [2019-12-07 11:50:15,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 [2019-12-07 11:50:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:15,433 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:50:15,434 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:15,456 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:50:15,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:50:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:15,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805681053] [2019-12-07 11:50:15,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:15,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-12-07 11:50:15,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893030478] [2019-12-07 11:50:15,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 11:50:15,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:50:15,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 11:50:15,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:50:15,477 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2019-12-07 11:50:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:15,518 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-12-07 11:50:15,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:50:15,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-12-07 11:50:15,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:15,519 INFO L225 Difference]: With dead ends: 19 [2019-12-07 11:50:15,519 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 11:50:15,519 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 11:50:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 11:50:15,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 11:50:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 11:50:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-12-07 11:50:15,522 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2019-12-07 11:50:15,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:15,522 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-12-07 11:50:15,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 11:50:15,522 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-12-07 11:50:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 11:50:15,523 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:50:15,523 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:50:15,723 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:50:15,724 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:50:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:50:15,724 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2019-12-07 11:50:15,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:50:15,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544365481] [2019-12-07 11:50:15,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/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 [2019-12-07 11:50:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:50:15,822 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 11:50:15,824 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:50:15,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:50:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:15,883 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:50:15,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:50:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:50:16,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544365481] [2019-12-07 11:50:16,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:50:16,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-12-07 11:50:16,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064977657] [2019-12-07 11:50:16,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 11:50:16,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:50:16,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 11:50:16,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-12-07 11:50:16,012 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2019-12-07 11:50:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:50:16,165 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-12-07 11:50:16,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:50:16,166 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-12-07 11:50:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:50:16,166 INFO L225 Difference]: With dead ends: 16 [2019-12-07 11:50:16,166 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 11:50:16,167 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-12-07 11:50:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 11:50:16,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 11:50:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 11:50:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 11:50:16,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-12-07 11:50:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:50:16,167 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:50:16,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 11:50:16,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:50:16,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 11:50:16,368 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:50:16,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 11:50:16,495 INFO L246 CegarLoopResult]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2019-12-07 11:50:16,495 INFO L246 CegarLoopResult]: For program point L52(lines 52 56) no Hoare annotation was computed. [2019-12-07 11:50:16,495 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-12-07 11:50:16,496 INFO L246 CegarLoopResult]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2019-12-07 11:50:16,496 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2019-12-07 11:50:16,496 INFO L246 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2019-12-07 11:50:16,496 INFO L249 CegarLoopResult]: At program point L110(lines 93 111) the Hoare annotation is: true [2019-12-07 11:50:16,496 INFO L246 CegarLoopResult]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2019-12-07 11:50:16,496 INFO L242 CegarLoopResult]: At program point L36-3(lines 36 37) the Hoare annotation is: false [2019-12-07 11:50:16,496 INFO L246 CegarLoopResult]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2019-12-07 11:50:16,496 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 11:50:16,496 INFO L246 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L242 CegarLoopResult]: At program point L78(lines 14 79) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (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))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +zero 8 24) (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)))) [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point L63(lines 63 69) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point L105-2(lines 105 108) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-12-07 11:50:16,497 INFO L246 CegarLoopResult]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2019-12-07 11:50:16,498 INFO L242 CegarLoopResult]: At program point L73-2(lines 73 77) the Hoare annotation is: false [2019-12-07 11:50:16,498 INFO L246 CegarLoopResult]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2019-12-07 11:50:16,498 INFO L246 CegarLoopResult]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-12-07 11:50:16,498 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 11:50:16,498 INFO L242 CegarLoopResult]: At program point L90(lines 81 91) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (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)) (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (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))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +zero 8 24) (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))) |ULTIMATE.start_main_#t~short9|) [2019-12-07 11:50:16,498 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2019-12-07 11:50:16,498 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 11:50:16,498 INFO L242 CegarLoopResult]: At program point L50-2(lines 50 59) the Hoare annotation is: false [2019-12-07 11:50:16,499 INFO L246 CegarLoopResult]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2019-12-07 11:50:16,499 INFO L246 CegarLoopResult]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-12-07 11:50:16,499 INFO L246 CegarLoopResult]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2019-12-07 11:50:16,499 INFO L246 CegarLoopResult]: For program point L26(lines 26 27) no Hoare annotation was computed. [2019-12-07 11:50:16,499 INFO L246 CegarLoopResult]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-12-07 11:50:16,499 INFO L242 CegarLoopResult]: At program point L84-2(lines 84 88) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (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))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +zero 8 24) (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))) |ULTIMATE.start_main_#t~short9|) [2019-12-07 11:50:16,499 INFO L246 CegarLoopResult]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2019-12-07 11:50:16,499 INFO L246 CegarLoopResult]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-12-07 11:50:16,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:50:16 BoogieIcfgContainer [2019-12-07 11:50:16,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:50:16,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:50:16,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:50:16,518 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:50:16,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:50:14" (3/4) ... [2019-12-07 11:50:16,521 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 11:50:16,529 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 11:50:16,529 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 11:50:16,529 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 11:50:16,547 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) [2019-12-07 11:50:16,548 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2019-12-07 11:50:16,548 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2019-12-07 11:50:16,570 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4fc1e2d6-bffb-4c11-9c05-00dbb5d8bd25/bin/uautomizer/witness.graphml [2019-12-07 11:50:16,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:50:16,571 INFO L168 Benchmark]: Toolchain (without parser) took 3133.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 953.7 MB in the beginning and 921.7 MB in the end (delta: 32.1 MB). Peak memory consumption was 153.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:16,571 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:50:16,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:16,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:16,572 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 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. [2019-12-07 11:50:16,572 INFO L168 Benchmark]: RCFGBuilder took 613.98 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:16,573 INFO L168 Benchmark]: TraceAbstraction took 2196.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.5 MB in the end (delta: 148.2 MB). Peak memory consumption was 148.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:16,573 INFO L168 Benchmark]: Witness Printer took 51.77 ms. Allocated memory is still 1.2 GB. Free memory was 928.5 MB in the beginning and 921.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:50:16,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.45 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 613.98 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2196.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.5 MB in the end (delta: 148.2 MB). Peak memory consumption was 148.2 MB. Max. memory is 11.5 GB. * Witness Printer took 51.77 ms. Allocated memory is still 1.2 GB. Free memory was 928.5 MB in the beginning and 921.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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 [2019-12-07 11:50:16,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~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 [2019-12-07 11:50:16,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 14]: Loop Invariant [2019-12-07 11:50:16,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 11:50:16,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 77 SDtfs, 114 SDslu, 55 SDs, 0 SdLazy, 51 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s 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, 129 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4061 SizeOfPredicates, 22 NumberOfNonLiveVariables, 132 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...