./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb223ac5dd337697f7c4caeca580bc7e9e7345b8 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb223ac5dd337697f7c4caeca580bc7e9e7345b8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:52:50,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:52:50,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:52:50,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:52:50,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:52:50,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:52:50,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:52:50,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:52:50,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:52:50,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:52:50,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:52:50,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:52:50,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:52:50,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:52:50,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:52:50,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:52:50,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:52:50,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:52:50,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:52:50,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:52:50,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:52:50,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:52:50,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:52:50,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:52:50,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:52:50,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:52:50,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:52:50,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:52:50,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:52:50,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:52:50,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:52:50,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:52:50,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:52:50,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:52:50,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:52:50,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:52:50,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:52:50,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:52:50,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:52:50,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:52:50,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:52:50,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:52:50,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:52:50,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:52:50,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:52:50,327 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:52:50,327 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:52:50,327 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:52:50,328 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:52:50,328 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:52:50,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:52:50,329 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:52:50,330 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:52:50,330 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:52:50,331 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:52:50,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:52:50,331 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:52:50,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:52:50,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:52:50,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:52:50,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:52:50,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:52:50,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:52:50,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:52:50,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:52:50,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:52:50,335 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:52:50,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:52:50,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:52:50,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:52:50,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:52:50,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:52:50,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:52:50,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:52:50,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:52:50,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:52:50,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:52:50,338 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:52:50,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:52:50,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:52:50,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:52:50,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:52:50,339 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2020-11-30 02:52:50,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:52:50,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:52:50,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:52:50,705 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:52:50,706 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:52:50,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-30 02:52:50,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/e41027bcf/36abc576b4b44e6c9689499342f7dfec/FLAG0a3689b75 [2020-11-30 02:52:51,285 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:52:51,286 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-30 02:52:51,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/e41027bcf/36abc576b4b44e6c9689499342f7dfec/FLAG0a3689b75 [2020-11-30 02:52:51,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/e41027bcf/36abc576b4b44e6c9689499342f7dfec [2020-11-30 02:52:51,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:52:51,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:52:51,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:52:51,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:52:51,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:52:51,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:52:51" (1/1) ... [2020-11-30 02:52:51,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d0cd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:51, skipping insertion in model container [2020-11-30 02:52:51,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:52:51" (1/1) ... [2020-11-30 02:52:51,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:52:51,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:52:52,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:52:52,026 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:52:52,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:52:52,105 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:52:52,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52 WrapperNode [2020-11-30 02:52:52,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:52:52,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:52:52,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:52:52,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:52:52,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:52:52,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:52:52,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:52:52,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:52:52,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... [2020-11-30 02:52:52,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:52:52,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:52:52,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:52:52,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:52:52,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/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 [2020-11-30 02:52:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:52:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:52:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 02:52:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:52:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 02:52:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:52:52,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:52:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:52:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 02:52:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:52:53,089 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:52:53,089 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 02:52:53,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:52:53 BoogieIcfgContainer [2020-11-30 02:52:53,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:52:53,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:52:53,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:52:53,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:52:53,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:52:51" (1/3) ... [2020-11-30 02:52:53,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4863eb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:52:53, skipping insertion in model container [2020-11-30 02:52:53,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:52" (2/3) ... [2020-11-30 02:52:53,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4863eb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:52:53, skipping insertion in model container [2020-11-30 02:52:53,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:52:53" (3/3) ... [2020-11-30 02:52:53,105 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2020-11-30 02:52:53,134 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:52:53,139 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:52:53,175 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:52:53,218 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:52:53,218 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:52:53,219 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:52:53,219 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:52:53,219 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:52:53,219 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:52:53,219 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:52:53,219 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:52:53,234 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-30 02:52:53,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:52:53,240 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:52:53,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:52:53,241 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:52:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:52:53,248 INFO L82 PathProgramCache]: Analyzing trace with hash -843734617, now seen corresponding path program 1 times [2020-11-30 02:52:53,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:52:53,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708776805] [2020-11-30 02:52:53,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:52:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:52:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:52:53,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708776805] [2020-11-30 02:52:53,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:52:53,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:52:53,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933619104] [2020-11-30 02:52:53,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:52:53,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:52:53,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:52:53,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:52:53,484 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-11-30 02:52:53,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:52:53,505 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2020-11-30 02:52:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:52:53,507 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 02:52:53,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:52:53,522 INFO L225 Difference]: With dead ends: 49 [2020-11-30 02:52:53,522 INFO L226 Difference]: Without dead ends: 23 [2020-11-30 02:52:53,527 INFO L677 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 [2020-11-30 02:52:53,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-30 02:52:53,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-30 02:52:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 02:52:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-11-30 02:52:53,574 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2020-11-30 02:52:53,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:52:53,574 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-11-30 02:52:53,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:52:53,575 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-30 02:52:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:52:53,576 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:52:53,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:52:53,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:52:53,577 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:52:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:52:53,581 INFO L82 PathProgramCache]: Analyzing trace with hash 406054834, now seen corresponding path program 1 times [2020-11-30 02:52:53,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:52:53,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336463447] [2020-11-30 02:52:53,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:52:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:52:53,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:52:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:52:53,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:52:53,980 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:52:53,982 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:52:53,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:52:54,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:52:54 BoogieIcfgContainer [2020-11-30 02:52:54,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:52:54,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:52:54,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:52:54,060 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:52:54,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:52:53" (3/4) ... [2020-11-30 02:52:54,064 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:52:54,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:52:54,069 INFO L168 Benchmark]: Toolchain (without parser) took 2400.41 ms. Allocated memory is still 119.5 MB. Free memory was 86.9 MB in the beginning and 84.5 MB in the end (delta: 2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:52:54,070 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 33.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:52:54,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.71 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 92.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:52:54,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.96 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 90.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:52:54,074 INFO L168 Benchmark]: Boogie Preprocessor took 61.23 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 88.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:52:54,075 INFO L168 Benchmark]: RCFGBuilder took 868.71 ms. Allocated memory is still 119.5 MB. Free memory was 88.3 MB in the beginning and 52.6 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:52:54,077 INFO L168 Benchmark]: TraceAbstraction took 963.75 ms. Allocated memory is still 119.5 MB. Free memory was 52.0 MB in the beginning and 84.5 MB in the end (delta: -32.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:52:54,077 INFO L168 Benchmark]: Witness Printer took 6.76 ms. Allocated memory is still 119.5 MB. Free memory is still 84.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:52:54,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 33.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 435.71 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 92.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.96 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 90.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.23 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 88.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 868.71 ms. Allocated memory is still 119.5 MB. Free memory was 88.3 MB in the beginning and 52.6 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 963.75 ms. Allocated memory is still 119.5 MB. Free memory was 52.0 MB in the beginning and 84.5 MB in the end (delta: -32.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.76 ms. Allocated memory is still 119.5 MB. Free memory is still 84.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someUnaryFLOAToperation at line 139, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L139] float x = -0.0f; [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L65] COND TRUE ix >= 0x50800000 [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L140] float res = atan_float(x); [L143] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L143] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_0620b.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 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=25occurred 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, 0.2s 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, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-30 02:52:57,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:52:57,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:52:57,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:52:57,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:52:57,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:52:57,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:52:57,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:52:57,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:52:57,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:52:57,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:52:57,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:52:57,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:52:57,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:52:57,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:52:57,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:52:57,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:52:57,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:52:57,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:52:57,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:52:57,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:52:57,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:52:57,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:52:57,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:52:57,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:52:57,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:52:57,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:52:57,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:52:57,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:52:57,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:52:57,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:52:57,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:52:57,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:52:57,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:52:57,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:52:57,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:52:57,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:52:57,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:52:57,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:52:57,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:52:57,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:52:57,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:52:57,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:52:57,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:52:57,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:52:57,350 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:52:57,350 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:52:57,351 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:52:57,351 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:52:57,351 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:52:57,351 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:52:57,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:52:57,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:52:57,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:52:57,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:52:57,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:52:57,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:52:57,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:52:57,356 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:52:57,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:52:57,357 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:52:57,357 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:52:57,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:52:57,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:52:57,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:52:57,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:52:57,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:52:57,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:52:57,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:52:57,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:52:57,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:52:57,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:52:57,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:52:57,361 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:52:57,361 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:52:57,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:52:57,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:52:57,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:52:57,362 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2020-11-30 02:52:57,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:52:57,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:52:57,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:52:57,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:52:57,899 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:52:57,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-30 02:52:57,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/8bf509066/4b62916d63dc4640a583977850c40b9d/FLAGf33380254 [2020-11-30 02:52:58,745 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:52:58,750 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-30 02:52:58,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/8bf509066/4b62916d63dc4640a583977850c40b9d/FLAGf33380254 [2020-11-30 02:52:59,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/data/8bf509066/4b62916d63dc4640a583977850c40b9d [2020-11-30 02:52:59,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:52:59,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:52:59,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:52:59,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:52:59,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:52:59,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c611cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59, skipping insertion in model container [2020-11-30 02:52:59,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:52:59,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:52:59,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:52:59,444 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:52:59,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:52:59,569 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:52:59,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59 WrapperNode [2020-11-30 02:52:59,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:52:59,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:52:59,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:52:59,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:52:59,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:52:59,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:52:59,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:52:59,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:52:59,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... [2020-11-30 02:52:59,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:52:59,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:52:59,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:52:59,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:52:59,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/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 [2020-11-30 02:52:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 02:52:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:52:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:52:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 02:52:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:52:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:52:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:52:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 02:52:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:52:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:53:08,557 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:53:08,557 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 02:53:08,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:53:08 BoogieIcfgContainer [2020-11-30 02:53:08,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:53:08,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:53:08,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:53:08,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:53:08,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:52:59" (1/3) ... [2020-11-30 02:53:08,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340f16ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:53:08, skipping insertion in model container [2020-11-30 02:53:08,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:52:59" (2/3) ... [2020-11-30 02:53:08,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340f16ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:53:08, skipping insertion in model container [2020-11-30 02:53:08,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:53:08" (3/3) ... [2020-11-30 02:53:08,569 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2020-11-30 02:53:08,582 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:53:08,588 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:53:08,604 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:53:08,650 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:53:08,651 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:53:08,651 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:53:08,651 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:53:08,651 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:53:08,651 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:53:08,651 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:53:08,651 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:53:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-30 02:53:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:53:08,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:53:08,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:53:08,672 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:53:08,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:53:08,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-11-30 02:53:08,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:53:08,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577690179] [2020-11-30 02:53:08,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/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 [2020-11-30 02:53:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:53:09,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:53:09,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:53:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:10,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:53:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:10,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577690179] [2020-11-30 02:53:10,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:53:10,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:53:10,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760857953] [2020-11-30 02:53:10,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:53:10,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:53:10,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:53:10,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:53:10,051 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-30 02:53:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:53:10,102 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-30 02:53:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:53:10,104 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 02:53:10,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:53:10,115 INFO L225 Difference]: With dead ends: 73 [2020-11-30 02:53:10,117 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 02:53:10,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:53:10,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 02:53:10,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-30 02:53:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-30 02:53:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-30 02:53:10,174 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-11-30 02:53:10,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:53:10,175 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-30 02:53:10,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:53:10,175 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-30 02:53:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:53:10,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:53:10,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:53:10,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:53:10,390 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:53:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:53:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-11-30 02:53:10,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:53:10,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765328982] [2020-11-30 02:53:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/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 [2020-11-30 02:53:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:53:11,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:53:11,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:53:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:11,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:53:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:11,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765328982] [2020-11-30 02:53:11,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:53:11,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 02:53:11,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336559366] [2020-11-30 02:53:11,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 02:53:11,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:53:11,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 02:53:11,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:53:11,762 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-11-30 02:53:16,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:53:16,783 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2020-11-30 02:53:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:53:16,788 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-30 02:53:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:53:16,790 INFO L225 Difference]: With dead ends: 57 [2020-11-30 02:53:16,790 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 02:53:16,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:53:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 02:53:16,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-11-30 02:53:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 02:53:16,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-11-30 02:53:16,796 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2020-11-30 02:53:16,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:53:16,797 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-11-30 02:53:16,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 02:53:16,797 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-11-30 02:53:16,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 02:53:16,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:53:16,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:53:17,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:53:17,024 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:53:17,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:53:17,025 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2020-11-30 02:53:17,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:53:17,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483585346] [2020-11-30 02:53:17,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/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 [2020-11-30 02:53:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:53:18,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:53:18,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:53:18,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:18,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:53:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:18,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483585346] [2020-11-30 02:53:18,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:53:18,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-30 02:53:18,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255229334] [2020-11-30 02:53:18,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 02:53:18,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:53:18,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 02:53:18,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 02:53:18,333 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-11-30 02:53:22,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:53:22,868 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-11-30 02:53:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:53:22,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-11-30 02:53:22,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:53:22,870 INFO L225 Difference]: With dead ends: 35 [2020-11-30 02:53:22,871 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 02:53:22,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 02:53:22,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 02:53:22,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-11-30 02:53:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 02:53:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-11-30 02:53:22,878 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-11-30 02:53:22,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:53:22,878 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-30 02:53:22,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 02:53:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-11-30 02:53:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 02:53:22,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:53:22,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:53:23,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:53:23,095 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:53:23,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:53:23,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2020-11-30 02:53:23,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:53:23,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139955863] [2020-11-30 02:53:23,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/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 [2020-11-30 02:53:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:53:25,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:53:25,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:53:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:25,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:53:25,998 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-30 02:53:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:26,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139955863] [2020-11-30 02:53:26,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:53:26,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 02:53:26,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75751761] [2020-11-30 02:53:26,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:53:26,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:53:26,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:53:26,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:53:26,172 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-11-30 02:53:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:53:26,445 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-11-30 02:53:26,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:53:26,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 02:53:26,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:53:26,456 INFO L225 Difference]: With dead ends: 32 [2020-11-30 02:53:26,456 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 02:53:26,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:53:26,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 02:53:26,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 02:53:26,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 02:53:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-11-30 02:53:26,460 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-11-30 02:53:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:53:26,461 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-11-30 02:53:26,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:53:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-30 02:53:26,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 02:53:26,467 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:53:26,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:53:26,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:53:26,668 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:53:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:53:26,669 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2020-11-30 02:53:26,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:53:26,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818013103] [2020-11-30 02:53:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 02:53:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:53:27,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-30 02:53:27,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:53:27,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 02:53:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:28,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:53:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:53:28,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818013103] [2020-11-30 02:53:28,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:53:28,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-30 02:53:28,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272212413] [2020-11-30 02:53:28,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 02:53:28,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:53:28,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 02:53:28,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-30 02:53:28,441 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-11-30 02:53:28,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:53:28,818 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-30 02:53:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 02:53:28,822 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-11-30 02:53:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:53:28,822 INFO L225 Difference]: With dead ends: 18 [2020-11-30 02:53:28,822 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:53:28,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-30 02:53:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:53:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:53:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:53:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:53:28,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 02:53:28,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:53:28,825 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:53:28,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 02:53:28,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:53:28,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:53:29,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 02:53:29,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:53:29,211 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-11-30 02:53:29,348 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-30 02:53:29,348 INFO L274 CegarLoopResult]: For program point L143-2(lines 143 146) no Hoare annotation was computed. [2020-11-30 02:53:29,348 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:53:29,349 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 02:53:29,349 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:53:29,349 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:53:29,349 INFO L270 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: false [2020-11-30 02:53:29,349 INFO L274 CegarLoopResult]: For program point L111(lines 111 116) no Hoare annotation was computed. [2020-11-30 02:53:29,350 INFO L270 CegarLoopResult]: At program point L128(lines 119 129) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) |ULTIMATE.start_main_#t~short36|)) [2020-11-30 02:53:29,350 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-11-30 02:53:29,350 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short36|)) [2020-11-30 02:53:29,351 INFO L274 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-11-30 02:53:29,351 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-11-30 02:53:29,351 INFO L274 CegarLoopResult]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2020-11-30 02:53:29,351 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2020-11-30 02:53:29,351 INFO L274 CegarLoopResult]: For program point L81(lines 81 97) no Hoare annotation was computed. [2020-11-30 02:53:29,351 INFO L274 CegarLoopResult]: For program point L73(lines 73 98) no Hoare annotation was computed. [2020-11-30 02:53:29,352 INFO L274 CegarLoopResult]: For program point L65(lines 65 72) no Hoare annotation was computed. [2020-11-30 02:53:29,352 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:53:29,352 INFO L274 CegarLoopResult]: For program point L90(lines 90 96) no Hoare annotation was computed. [2020-11-30 02:53:29,352 INFO L274 CegarLoopResult]: For program point L90-2(lines 73 98) no Hoare annotation was computed. [2020-11-30 02:53:29,352 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 02:53:29,352 INFO L277 CegarLoopResult]: At program point L148(lines 131 149) the Hoare annotation is: true [2020-11-30 02:53:29,353 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-30 02:53:29,353 INFO L274 CegarLoopResult]: For program point L82(lines 82 88) no Hoare annotation was computed. [2020-11-30 02:53:29,353 INFO L274 CegarLoopResult]: For program point L115-2(line 115) no Hoare annotation was computed. [2020-11-30 02:53:29,353 INFO L270 CegarLoopResult]: At program point L115-3(lines 55 117) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))))) [2020-11-30 02:53:29,353 INFO L274 CegarLoopResult]: For program point L74(lines 74 77) no Hoare annotation was computed. [2020-11-30 02:53:29,354 INFO L274 CegarLoopResult]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2020-11-30 02:53:29,354 INFO L274 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2020-11-30 02:53:29,354 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:53:29,354 INFO L274 CegarLoopResult]: For program point L75(lines 75 76) no Hoare annotation was computed. [2020-11-30 02:53:29,354 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-11-30 02:53:29,355 INFO L270 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-30 02:53:29,355 INFO L274 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-11-30 02:53:29,355 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-30 02:53:29,355 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: false [2020-11-30 02:53:29,355 INFO L274 CegarLoopResult]: For program point L68(lines 68 71) no Hoare annotation was computed. [2020-11-30 02:53:29,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,388 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,400 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,406 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:53:29 BoogieIcfgContainer [2020-11-30 02:53:29,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:53:29,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:53:29,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:53:29,414 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:53:29,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:53:08" (3/4) ... [2020-11-30 02:53:29,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:53:29,442 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 02:53:29,442 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 02:53:29,443 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:53:29,444 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:53:29,480 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) [2020-11-30 02:53:29,482 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-30 02:53:29,484 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-30 02:53:29,564 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b1b2025b-36fe-4d4f-a6b1-fdf83537476f/bin/utaipan/witness.graphml [2020-11-30 02:53:29,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:53:29,566 INFO L168 Benchmark]: Toolchain (without parser) took 30476.27 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.7 MB in the beginning and 30.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:53:29,567 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:53:29,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.00 ms. Allocated memory is still 54.5 MB. Free memory was 33.5 MB in the beginning and 35.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:53:29,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.66 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 33.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:53:29,569 INFO L168 Benchmark]: Boogie Preprocessor took 93.34 ms. Allocated memory is still 54.5 MB. Free memory was 33.0 MB in the beginning and 30.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:53:29,569 INFO L168 Benchmark]: RCFGBuilder took 8806.29 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.6 MB in the beginning and 45.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:53:29,570 INFO L168 Benchmark]: TraceAbstraction took 20846.82 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 36.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:53:29,575 INFO L168 Benchmark]: Witness Printer took 154.25 ms. Allocated memory is still 67.1 MB. Free memory was 36.0 MB in the beginning and 30.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:53:29,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 478.00 ms. Allocated memory is still 54.5 MB. Free memory was 33.5 MB in the beginning and 35.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.66 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 33.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.34 ms. Allocated memory is still 54.5 MB. Free memory was 33.0 MB in the beginning and 30.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8806.29 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.6 MB in the beginning and 45.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20846.82 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 36.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * Witness Printer took 154.25 ms. Allocated memory is still 67.1 MB. Free memory was 36.0 MB in the beginning and 30.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 55]: Loop Invariant [2020-11-30 02:53:29,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 119]: Loop Invariant [2020-11-30 02:53:29,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,614 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,615 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,615 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,615 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,616 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,616 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2020-11-30 02:53:29,617 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,621 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,624 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,626 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 59]: Loop Invariant [2020-11-30 02:53:29,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,631 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:53:29,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:53:29,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 183 SDslu, 183 SDs, 0 SdLazy, 80 SolverSat, 13 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 136 HoareAnnotationTreeSize, 7 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 6.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 9709 SizeOfPredicates, 28 NumberOfNonLiveVariables, 523 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...