./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_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 15:24:21,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:24:21,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:24:21,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:24:21,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:24:21,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:24:21,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:24:21,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:24:21,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:24:21,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:24:21,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:24:21,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:24:21,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:24:21,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:24:21,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:24:21,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:24:21,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:24:21,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:24:21,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:24:21,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:24:21,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:24:21,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:24:21,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:24:21,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:24:21,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:24:21,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:24:21,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:24:21,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:24:21,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:24:21,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:24:21,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:24:21,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:24:21,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:24:21,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:24:21,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:24:21,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:24:21,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:24:21,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:24:21,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:24:21,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:24:21,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:24:21,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:24:21,239 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:24:21,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:24:21,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:24:21,240 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:24:21,241 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:24:21,241 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:24:21,241 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:24:21,241 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:24:21,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:24:21,242 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:24:21,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:24:21,242 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:24:21,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:24:21,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:24:21,242 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:24:21,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:24:21,243 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:24:21,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:24:21,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:24:21,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:24:21,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:24:21,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:24:21,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:24:21,244 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:24:21,244 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:24:21,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:24:21,244 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:24:21,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:24:21,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:24:21,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:24:21,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:24:21,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:24:21,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:24:21,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:24:21,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:24:21,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:24:21,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:24:21,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:24:21,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:24:21,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:24:21,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2019-12-07 15:24:21,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:24:21,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:24:21,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:24:21,356 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:24:21,356 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:24:21,356 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 15:24:21,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/0177ff558/82e03ca0f9de4057885e6d2acb972d66/FLAG0df473b35 [2019-12-07 15:24:21,729 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:24:21,730 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 15:24:21,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/0177ff558/82e03ca0f9de4057885e6d2acb972d66/FLAG0df473b35 [2019-12-07 15:24:21,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/0177ff558/82e03ca0f9de4057885e6d2acb972d66 [2019-12-07 15:24:21,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:24:21,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:24:21,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:24:21,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:24:21,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:24:21,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:21,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17df66d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21, skipping insertion in model container [2019-12-07 15:24:21,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:21,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:24:21,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:24:21,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:24:21,925 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:24:21,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:24:21,962 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:24:21,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21 WrapperNode [2019-12-07 15:24:21,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:24:21,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:24:21,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:24:21,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:24:21,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:21,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:21,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:24:21,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:24:21,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:24:21,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:24:22,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:22,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:22,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:22,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:22,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:22,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:22,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... [2019-12-07 15:24:22,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:24:22,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:24:22,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:24:22,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:24:22,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:24:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:24:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:24:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:24:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:24:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:24:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:24:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:24:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:24:22,364 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:24:22,364 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 15:24:22,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:24:22 BoogieIcfgContainer [2019-12-07 15:24:22,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:24:22,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:24:22,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:24:22,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:24:22,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:24:21" (1/3) ... [2019-12-07 15:24:22,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9659a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:24:22, skipping insertion in model container [2019-12-07 15:24:22,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:21" (2/3) ... [2019-12-07 15:24:22,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9659a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:24:22, skipping insertion in model container [2019-12-07 15:24:22,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:24:22" (3/3) ... [2019-12-07 15:24:22,372 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2019-12-07 15:24:22,379 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:24:22,384 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:24:22,391 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:24:22,406 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:24:22,406 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:24:22,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:24:22,407 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:24:22,407 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:24:22,407 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:24:22,407 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:24:22,407 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:24:22,416 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-12-07 15:24:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:24:22,419 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:24:22,420 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:24:22,420 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:24:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:24:22,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1703431191, now seen corresponding path program 1 times [2019-12-07 15:24:22,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:24:22,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247976457] [2019-12-07 15:24:22,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:24:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:24:22,501 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 15:24:22,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247976457] [2019-12-07 15:24:22,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:24:22,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:24:22,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494751501] [2019-12-07 15:24:22,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:24:22,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:24:22,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:24:22,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:24:22,516 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-12-07 15:24:22,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:24:22,528 INFO L93 Difference]: Finished difference Result 47 states and 73 transitions. [2019-12-07 15:24:22,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:24:22,529 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 15:24:22,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:24:22,536 INFO L225 Difference]: With dead ends: 47 [2019-12-07 15:24:22,536 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 15:24:22,538 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 15:24:22,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 15:24:22,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-07 15:24:22,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 15:24:22,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2019-12-07 15:24:22,560 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 8 [2019-12-07 15:24:22,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:24:22,560 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-12-07 15:24:22,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:24:22,560 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2019-12-07 15:24:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:24:22,561 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:24:22,561 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:24:22,561 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:24:22,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:24:22,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1637063338, now seen corresponding path program 1 times [2019-12-07 15:24:22,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:24:22,561 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496321336] [2019-12-07 15:24:22,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:24:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:24:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:24:22,607 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 15:24:22,607 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:24:22,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:24:22 BoogieIcfgContainer [2019-12-07 15:24:22,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:24:22,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:24:22,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:24:22,625 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:24:22,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:24:22" (3/4) ... [2019-12-07 15:24:22,628 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:24:22,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:24:22,630 INFO L168 Benchmark]: Toolchain (without parser) took 884.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -88.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:22,630 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:24:22,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:22,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:22,631 INFO L168 Benchmark]: Boogie Preprocessor took 20.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:24:22,632 INFO L168 Benchmark]: RCFGBuilder took 350.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:22,632 INFO L168 Benchmark]: TraceAbstraction took 258.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:22,632 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:24:22,634 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 216.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 350.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 258.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 ms. Allocated memory is still 1.1 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; [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, 24 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 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=24occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 15:24:23,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:24:23,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:24:23,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:24:23,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:24:23,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:24:23,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:24:23,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:24:23,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:24:23,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:24:23,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:24:23,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:24:23,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:24:23,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:24:23,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:24:23,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:24:23,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:24:23,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:24:23,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:24:23,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:24:23,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:24:23,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:24:23,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:24:23,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:24:23,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:24:23,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:24:23,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:24:23,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:24:23,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:24:23,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:24:23,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:24:23,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:24:23,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:24:23,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:24:23,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:24:23,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:24:23,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:24:23,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:24:23,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:24:23,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:24:24,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:24:24,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 15:24:24,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:24:24,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:24:24,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:24:24,011 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:24:24,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:24:24,012 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:24:24,012 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:24:24,012 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:24:24,012 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:24:24,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:24:24,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:24:24,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:24:24,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:24:24,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:24:24,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:24:24,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:24:24,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:24:24,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:24:24,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:24:24,014 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:24:24,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:24:24,014 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:24:24,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:24:24,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:24:24,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:24:24,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:24:24,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:24:24,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:24:24,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:24:24,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:24:24,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:24:24,015 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:24:24,015 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:24:24,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:24:24,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:24:24,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:24:24,016 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_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2019-12-07 15:24:24,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:24:24,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:24:24,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:24:24,198 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:24:24,198 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:24:24,198 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 15:24:24,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/d23a0a909/bfdbff9ebe034da2b02ad079960b5a5e/FLAG7d7b130de [2019-12-07 15:24:24,665 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:24:24,666 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-12-07 15:24:24,670 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/d23a0a909/bfdbff9ebe034da2b02ad079960b5a5e/FLAG7d7b130de [2019-12-07 15:24:24,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/data/d23a0a909/bfdbff9ebe034da2b02ad079960b5a5e [2019-12-07 15:24:24,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:24:24,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:24:24,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:24:24,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:24:24,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:24:24,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31403813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24, skipping insertion in model container [2019-12-07 15:24:24,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:24:24,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:24:24,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:24:24,824 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:24:24,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:24:24,893 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:24:24,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24 WrapperNode [2019-12-07 15:24:24,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:24:24,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:24:24,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:24:24,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:24:24,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:24:24,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:24:24,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:24:24,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:24:24,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... [2019-12-07 15:24:24,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:24:24,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:24:24,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:24:24,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:24:24,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:24:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:24:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 15:24:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:24:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:24:24,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:24:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 15:24:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:24:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:24:25,550 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:24:25,550 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 15:24:25,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:24:25 BoogieIcfgContainer [2019-12-07 15:24:25,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:24:25,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:24:25,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:24:25,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:24:25,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:24:24" (1/3) ... [2019-12-07 15:24:25,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6280559d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:24:25, skipping insertion in model container [2019-12-07 15:24:25,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:24:24" (2/3) ... [2019-12-07 15:24:25,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6280559d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:24:25, skipping insertion in model container [2019-12-07 15:24:25,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:24:25" (3/3) ... [2019-12-07 15:24:25,556 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2019-12-07 15:24:25,562 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:24:25,567 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:24:25,573 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:24:25,588 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:24:25,588 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:24:25,588 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:24:25,588 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:24:25,588 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:24:25,588 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:24:25,588 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:24:25,588 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:24:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-12-07 15:24:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:24:25,601 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:24:25,601 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:24:25,601 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:24:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:24:25,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2019-12-07 15:24:25,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:24:25,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686520590] [2019-12-07 15:24:25,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 15:24:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:24:25,744 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:24:25,748 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:24:25,756 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 15:24:25,756 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:24:25,758 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 15:24:25,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686520590] [2019-12-07 15:24:25,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:24:25,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:24:25,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696019702] [2019-12-07 15:24:25,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:24:25,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:24:25,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:24:25,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:24:25,773 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-12-07 15:24:25,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:24:25,786 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-12-07 15:24:25,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:24:25,787 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 15:24:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:24:25,794 INFO L225 Difference]: With dead ends: 72 [2019-12-07 15:24:25,794 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 15:24:25,796 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 15:24:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 15:24:25,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 15:24:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 15:24:25,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-12-07 15:24:25,820 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2019-12-07 15:24:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:24:25,821 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-12-07 15:24:25,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:24:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-12-07 15:24:25,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:24:25,821 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:24:25,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:24:26,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:24:26,022 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:24:26,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:24:26,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2019-12-07 15:24:26,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:24:26,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066171187] [2019-12-07 15:24:26,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 15:24:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:24:26,180 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:24:26,182 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:24:26,222 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 15:24:26,222 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:24:26,262 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 15:24:26,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066171187] [2019-12-07 15:24:26,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:24:26,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 15:24:26,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672095255] [2019-12-07 15:24:26,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:24:26,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:24:26,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:24:26,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:24:26,265 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-12-07 15:24:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:24:26,319 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-12-07 15:24:26,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:24:26,319 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-12-07 15:24:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:24:26,320 INFO L225 Difference]: With dead ends: 43 [2019-12-07 15:24:26,320 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 15:24:26,321 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 15:24:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 15:24:26,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 15:24:26,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 15:24:26,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-12-07 15:24:26,324 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2019-12-07 15:24:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:24:26,324 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-12-07 15:24:26,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:24:26,324 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-12-07 15:24:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:24:26,324 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:24:26,325 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:24:26,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:24:26,525 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:24:26,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:24:26,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2019-12-07 15:24:26,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:24:26,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933240880] [2019-12-07 15:24:26,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 15:24:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:24:26,624 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:24:26,625 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:24:26,647 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 15:24:26,647 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:24:26,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:24:26,668 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 15:24:26,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933240880] [2019-12-07 15:24:26,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:24:26,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-12-07 15:24:26,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936927448] [2019-12-07 15:24:26,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 15:24:26,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:24:26,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 15:24:26,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:24:26,670 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2019-12-07 15:24:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:24:26,711 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-12-07 15:24:26,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:24:26,712 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-12-07 15:24:26,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:24:26,712 INFO L225 Difference]: With dead ends: 19 [2019-12-07 15:24:26,712 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 15:24:26,713 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 15:24:26,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 15:24:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 15:24:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 15:24:26,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-12-07 15:24:26,716 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2019-12-07 15:24:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:24:26,716 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-12-07 15:24:26,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 15:24:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-12-07 15:24:26,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 15:24:26,716 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:24:26,716 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:24:26,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:24:26,917 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:24:26,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:24:26,918 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2019-12-07 15:24:26,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:24:26,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109174356] [2019-12-07 15:24:26,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 15:24:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:24:27,003 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 15:24:27,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:24:27,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:24:27,061 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 15:24:27,061 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:24:27,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:24:27,176 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 15:24:27,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109174356] [2019-12-07 15:24:27,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:24:27,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-12-07 15:24:27,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845903295] [2019-12-07 15:24:27,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 15:24:27,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:24:27,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 15:24:27,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-12-07 15:24:27,178 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2019-12-07 15:24:27,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:24:27,333 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-12-07 15:24:27,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 15:24:27,333 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-12-07 15:24:27,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:24:27,334 INFO L225 Difference]: With dead ends: 16 [2019-12-07 15:24:27,334 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:24:27,335 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 15:24:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:24:27,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:24:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:24:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:24:27,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-12-07 15:24:27,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:24:27,336 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:24:27,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 15:24:27,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:24:27,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:24:27,537 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:24:27,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:24:27,666 INFO L246 CegarLoopResult]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2019-12-07 15:24:27,666 INFO L246 CegarLoopResult]: For program point L52(lines 52 56) no Hoare annotation was computed. [2019-12-07 15:24:27,666 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-12-07 15:24:27,666 INFO L246 CegarLoopResult]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2019-12-07 15:24:27,667 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 15:24:27,667 INFO L246 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2019-12-07 15:24:27,667 INFO L249 CegarLoopResult]: At program point L110(lines 93 111) the Hoare annotation is: true [2019-12-07 15:24:27,667 INFO L246 CegarLoopResult]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2019-12-07 15:24:27,667 INFO L242 CegarLoopResult]: At program point L36-3(lines 36 37) the Hoare annotation is: false [2019-12-07 15:24:27,667 INFO L246 CegarLoopResult]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2019-12-07 15:24:27,668 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:24:27,668 INFO L246 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-12-07 15:24:27,668 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 15:24:27,668 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 15:24:27,668 INFO L246 CegarLoopResult]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-12-07 15:24:27,668 INFO L246 CegarLoopResult]: For program point L63(lines 63 69) no Hoare annotation was computed. [2019-12-07 15:24:27,668 INFO L246 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2019-12-07 15:24:27,669 INFO L246 CegarLoopResult]: For program point L105-2(lines 105 108) no Hoare annotation was computed. [2019-12-07 15:24:27,669 INFO L246 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2019-12-07 15:24:27,669 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-12-07 15:24:27,669 INFO L246 CegarLoopResult]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2019-12-07 15:24:27,669 INFO L242 CegarLoopResult]: At program point L73-2(lines 73 77) the Hoare annotation is: false [2019-12-07 15:24:27,669 INFO L246 CegarLoopResult]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2019-12-07 15:24:27,669 INFO L246 CegarLoopResult]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-12-07 15:24:27,670 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 15:24:27,670 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 15:24:27,670 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2019-12-07 15:24:27,670 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:24:27,670 INFO L242 CegarLoopResult]: At program point L50-2(lines 50 59) the Hoare annotation is: false [2019-12-07 15:24:27,671 INFO L246 CegarLoopResult]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2019-12-07 15:24:27,671 INFO L246 CegarLoopResult]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-12-07 15:24:27,671 INFO L246 CegarLoopResult]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2019-12-07 15:24:27,671 INFO L246 CegarLoopResult]: For program point L26(lines 26 27) no Hoare annotation was computed. [2019-12-07 15:24:27,671 INFO L246 CegarLoopResult]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-12-07 15:24:27,671 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 15:24:27,671 INFO L246 CegarLoopResult]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2019-12-07 15:24:27,672 INFO L246 CegarLoopResult]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-12-07 15:24:27,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:24:27 BoogieIcfgContainer [2019-12-07 15:24:27,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:24:27,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:24:27,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:24:27,692 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:24:27,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:24:25" (3/4) ... [2019-12-07 15:24:27,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:24:27,702 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 15:24:27,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 15:24:27,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:24:27,721 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 15:24:27,722 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 15:24:27,722 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 15:24:27,748 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_da46af75-7bb5-47e8-982a-b92525915642/bin/utaipan/witness.graphml [2019-12-07 15:24:27,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:24:27,750 INFO L168 Benchmark]: Toolchain (without parser) took 3068.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.4 MB in the beginning and 914.3 MB in the end (delta: 38.1 MB). Peak memory consumption was 155.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:27,751 INFO L168 Benchmark]: CDTParser took 0.13 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 15:24:27,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:27,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:27,751 INFO L168 Benchmark]: Boogie Preprocessor took 24.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:24:27,752 INFO L168 Benchmark]: RCFGBuilder took 603.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:27,752 INFO L168 Benchmark]: TraceAbstraction took 2139.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 921.2 MB in the end (delta: 150.5 MB). Peak memory consumption was 150.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:27,752 INFO L168 Benchmark]: Witness Printer took 56.87 ms. Allocated memory is still 1.1 GB. Free memory was 921.2 MB in the beginning and 914.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:24:27,754 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 211.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 603.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2139.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 921.2 MB in the end (delta: 150.5 MB). Peak memory consumption was 150.5 MB. Max. memory is 11.5 GB. * Witness Printer took 56.87 ms. Allocated memory is still 1.1 GB. Free memory was 921.2 MB in the beginning and 914.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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 15:24:27,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,761 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,761 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,761 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 15:24:27,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,764 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 15:24:27,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-12-07 15:24:27,766 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: 1.9s, 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...