./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF --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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:34:10,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:34:10,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:34:10,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:34:10,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:34:10,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:34:10,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:34:10,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:34:10,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:34:10,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:34:10,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:34:10,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:34:10,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:34:10,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:34:10,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:34:10,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:34:10,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:34:10,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:34:10,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:34:10,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:34:10,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:34:10,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:34:10,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:34:10,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:34:10,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:34:10,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:34:10,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:34:10,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:34:10,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:34:10,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:34:10,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:34:10,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:34:10,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:34:10,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:34:10,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:34:10,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:34:10,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:34:10,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:34:10,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:34:10,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:34:10,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:34:10,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 02:34:10,429 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:34:10,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:34:10,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:34:10,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:34:10,433 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:34:10,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:34:10,434 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:34:10,434 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:34:10,440 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:34:10,440 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:34:10,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:34:10,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:34:10,442 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:34:10,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:34:10,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:34:10,443 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:34:10,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:34:10,444 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:34:10,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:34:10,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:34:10,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:34:10,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:34:10,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:34:10,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:34:10,445 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:34:10,446 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:34:10,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:34:10,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:34:10,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:34:10,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:34:10,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:34:10,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:34:10,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:34:10,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:34:10,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:34:10,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:34:10,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:34:10,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:34:10,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:34:10,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:34:10,450 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_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-13 02:34:10,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:34:10,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:34:10,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:34:10,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:34:10,810 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:34:10,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-13 02:34:10,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/a8ba63e76/4d0be9e61f18422797b86b079b18c940/FLAGe6a43449a [2021-11-13 02:34:11,427 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:34:11,432 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-13 02:34:11,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/a8ba63e76/4d0be9e61f18422797b86b079b18c940/FLAGe6a43449a [2021-11-13 02:34:11,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/a8ba63e76/4d0be9e61f18422797b86b079b18c940 [2021-11-13 02:34:11,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:34:11,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:34:11,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:11,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:34:11,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:34:11,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:11" (1/1) ... [2021-11-13 02:34:11,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4e1d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:11, skipping insertion in model container [2021-11-13 02:34:11,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:11" (1/1) ... [2021-11-13 02:34:11,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:34:11,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:34:12,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-13 02:34:12,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-13 02:34:12,079 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-13 02:34:12,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-13 02:34:12,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:12,093 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:34:12,142 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-13 02:34:12,145 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-13 02:34:12,155 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-13 02:34:12,161 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-13 02:34:12,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:12,178 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:34:12,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12 WrapperNode [2021-11-13 02:34:12,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:12,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:34:12,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:34:12,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:34:12,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:34:12,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:34:12,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:34:12,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:34:12,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:34:12,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:34:12,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:34:12,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:34:12,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (1/1) ... [2021-11-13 02:34:12,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:34:12,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:34:12,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:34:12,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:34:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-13 02:34:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-13 02:34:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 02:34:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:34:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 02:34:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 02:34:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-13 02:34:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-13 02:34:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-13 02:34:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:34:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:34:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 02:34:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:34:13,069 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:34:13,069 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:34:13,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:13 BoogieIcfgContainer [2021-11-13 02:34:13,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:34:13,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:34:13,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:34:13,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:34:13,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:34:11" (1/3) ... [2021-11-13 02:34:13,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598532f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:13, skipping insertion in model container [2021-11-13 02:34:13,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:12" (2/3) ... [2021-11-13 02:34:13,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598532f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:13, skipping insertion in model container [2021-11-13 02:34:13,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:13" (3/3) ... [2021-11-13 02:34:13,088 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-13 02:34:13,097 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:34:13,097 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-13 02:34:13,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:34:13,178 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:34:13,178 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-13 02:34:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 02:34:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 02:34:13,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:13,216 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:34:13,216 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:34:13,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:13,227 INFO L85 PathProgramCache]: Analyzing trace with hash -682083065, now seen corresponding path program 1 times [2021-11-13 02:34:13,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:34:13,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144539035] [2021-11-13 02:34:13,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:13,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:34:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:34:13,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 02:34:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:34:13,635 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 02:34:13,640 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 02:34:13,642 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-13 02:34:13,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-13 02:34:13,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-13 02:34:13,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-13 02:34:13,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:34:13,651 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 02:34:13,654 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:34:13,666 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-13 02:34:13,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-13 02:34:13,667 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-13 02:34:13,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-13 02:34:13,668 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-13 02:34:13,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-13 02:34:13,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret8#1 : ~ieee754_float~0 not handled [2021-11-13 02:34:13,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret8#1 : ~ieee754_float~0 not handled [2021-11-13 02:34:13,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret8#1 : ~ieee754_float~0 not handled [2021-11-13 02:34:13,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-13 02:34:13,671 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-11-13 02:34:13,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-13 02:34:13,671 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-11-13 02:34:13,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-11-13 02:34:13,672 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-11-13 02:34:13,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret9#1 : ~ieee754_float~0 not handled [2021-11-13 02:34:13,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret9#1 : ~ieee754_float~0 not handled [2021-11-13 02:34:13,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret9#1 : ~ieee754_float~0 not handled [2021-11-13 02:34:13,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:34:13 BoogieIcfgContainer [2021-11-13 02:34:13,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:34:13,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:34:13,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:34:13,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:34:13,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:13" (3/4) ... [2021-11-13 02:34:13,710 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 02:34:13,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:34:13,711 INFO L158 Benchmark]: Toolchain (without parser) took 1928.72ms. Allocated memory was 86.0MB in the beginning and 130.0MB in the end (delta: 44.0MB). Free memory was 50.2MB in the beginning and 98.5MB in the end (delta: -48.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:34:13,712 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 86.0MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:34:13,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.01ms. Allocated memory was 86.0MB in the beginning and 130.0MB in the end (delta: 44.0MB). Free memory was 50.0MB in the beginning and 105.2MB in the end (delta: -55.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-13 02:34:13,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.61ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 103.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:34:13,714 INFO L158 Benchmark]: Boogie Preprocessor took 58.13ms. Allocated memory is still 130.0MB. Free memory was 103.4MB in the beginning and 101.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:34:13,715 INFO L158 Benchmark]: RCFGBuilder took 762.57ms. Allocated memory is still 130.0MB. Free memory was 101.6MB in the beginning and 84.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-13 02:34:13,716 INFO L158 Benchmark]: TraceAbstraction took 630.41ms. Allocated memory is still 130.0MB. Free memory was 83.4MB in the beginning and 98.5MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:34:13,716 INFO L158 Benchmark]: Witness Printer took 4.86ms. Allocated memory is still 130.0MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:34:13,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 86.0MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.01ms. Allocated memory was 86.0MB in the beginning and 130.0MB in the end (delta: 44.0MB). Free memory was 50.0MB in the beginning and 105.2MB in the end (delta: -55.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.61ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 103.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.13ms. Allocated memory is still 130.0MB. Free memory was 103.4MB in the beginning and 101.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 762.57ms. Allocated memory is still 130.0MB. Free memory was 101.6MB in the beginning and 84.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 630.41ms. Allocated memory is still 130.0MB. Free memory was 83.4MB in the beginning and 98.5MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.86ms. Allocated memory is still 130.0MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret8#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret8#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret8#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret9#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret9#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret9#1 : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 130. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; VAL [f1={9:0}, f2={7:0}] [L141] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L141] RET, EXPR returnsStructure(0) VAL [f1={9:0}, f2={7:0}, returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=56returnsStructure(0)=0] [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L142] RET, EXPR returnsStructure(1) VAL [f1={9:0}, f2={7:0}, returnsStructure(1)=0returnsStructure(1)=49returnsStructure(1)=0returnsStructure(1)=0] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [f1={9:0}, f1.ieee.negative=0, f2={7:0}, f2.ieee.negative=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [f1={9:0}, f2={7:0}] - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-11-13 02:34:13,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF --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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:34:16,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:34:16,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:34:16,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:34:16,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:34:16,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:34:16,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:34:16,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:34:16,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:34:16,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:34:16,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:34:16,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:34:16,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:34:16,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:34:16,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:34:16,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:34:16,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:34:16,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:34:16,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:34:16,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:34:16,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:34:16,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:34:16,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:34:16,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:34:16,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:34:16,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:34:16,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:34:16,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:34:16,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:34:16,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:34:16,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:34:16,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:34:16,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:34:16,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:34:16,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:34:16,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:34:16,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:34:16,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:34:16,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:34:16,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:34:16,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:34:16,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 02:34:16,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:34:16,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:34:16,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:34:16,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:34:16,420 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:34:16,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:34:16,421 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:34:16,421 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:34:16,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:34:16,422 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:34:16,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:34:16,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:34:16,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:34:16,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:34:16,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:34:16,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:34:16,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:34:16,425 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:34:16,426 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:34:16,426 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:34:16,426 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:34:16,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:34:16,427 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:34:16,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:34:16,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:34:16,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:34:16,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:34:16,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:34:16,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:34:16,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:34:16,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:34:16,429 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:34:16,430 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:34:16,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:34:16,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:34:16,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:34:16,431 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_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-11-13 02:34:16,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:34:16,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:34:16,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:34:16,880 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:34:16,881 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:34:16,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-13 02:34:16,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/77535e5e2/db5cecb783de467da459d4260694e1cd/FLAG7a8c2d795 [2021-11-13 02:34:17,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:34:17,604 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-11-13 02:34:17,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/77535e5e2/db5cecb783de467da459d4260694e1cd/FLAG7a8c2d795 [2021-11-13 02:34:17,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/data/77535e5e2/db5cecb783de467da459d4260694e1cd [2021-11-13 02:34:17,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:34:17,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:34:17,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:17,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:34:17,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:34:17,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:17" (1/1) ... [2021-11-13 02:34:17,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfcc9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:17, skipping insertion in model container [2021-11-13 02:34:17,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:17" (1/1) ... [2021-11-13 02:34:17,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:34:18,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:34:18,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-13 02:34:18,207 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-13 02:34:18,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-13 02:34:18,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-13 02:34:18,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:18,234 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:34:18,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2021-11-13 02:34:18,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2021-11-13 02:34:18,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2021-11-13 02:34:18,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2021-11-13 02:34:18,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:34:18,349 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:34:18,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18 WrapperNode [2021-11-13 02:34:18,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:34:18,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:34:18,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:34:18,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:34:18,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:34:18,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:34:18,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:34:18,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:34:18,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:34:18,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:34:18,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:34:18,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:34:18,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (1/1) ... [2021-11-13 02:34:18,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:34:18,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:34:18,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:34:18,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:34:18,587 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-11-13 02:34:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-11-13 02:34:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:34:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:34:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-13 02:34:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:34:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-11-13 02:34:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-11-13 02:34:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:34:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:34:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-13 02:34:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:34:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:34:19,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:34:19,187 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:34:19,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:19 BoogieIcfgContainer [2021-11-13 02:34:19,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:34:19,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:34:19,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:34:19,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:34:19,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:34:17" (1/3) ... [2021-11-13 02:34:19,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad3ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:19, skipping insertion in model container [2021-11-13 02:34:19,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:18" (2/3) ... [2021-11-13 02:34:19,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad3ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:19, skipping insertion in model container [2021-11-13 02:34:19,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:19" (3/3) ... [2021-11-13 02:34:19,204 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-11-13 02:34:19,209 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:34:19,210 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-13 02:34:19,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:34:19,289 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:34:19,289 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-13 02:34:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-13 02:34:19,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 02:34:19,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:19,332 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:34:19,333 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:34:19,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:19,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-11-13 02:34:19,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:19,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691014347] [2021-11-13 02:34:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:19,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:19,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:19,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:19,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:34:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:19,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-13 02:34:19,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:19,714 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:34:19,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-13 02:34:19,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 57 [2021-11-13 02:34:20,195 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-13 02:34:20,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 84 [2021-11-13 02:34:20,827 INFO L354 Elim1Store]: treesize reduction 449, result has 16.9 percent of original size [2021-11-13 02:34:20,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 78 treesize of output 127 [2021-11-13 02:34:23,828 INFO L354 Elim1Store]: treesize reduction 171, result has 16.2 percent of original size [2021-11-13 02:34:23,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 198 [2021-11-13 02:34:23,913 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-13 02:34:23,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 205 [2021-11-13 02:34:24,439 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-13 02:34:24,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 6339 treesize of output 6239 [2021-11-13 02:34:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:34:25,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:34,090 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem10#1_9| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret9#1.ieee.negative| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_11|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_11| .cse1))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret9#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem10#1_9|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem10#1_9|)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_11|))))) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem10#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem10#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem10#1_9|))))))) is different from false [2021-11-13 02:34:34,110 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:34,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691014347] [2021-11-13 02:34:34,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent|, |v_ULTIMATE.start_testOne_#t~mem10#1_9|, |ULTIMATE.start_testOne_~#f2~0#1.offset|, |ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa|, |ULTIMATE.start_testOne_#t~ret9#1.ieee.negative|] [2021-11-13 02:34:34,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1125195785] [2021-11-13 02:34:34,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:34,113 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:34:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:34:34,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:34:34,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2021-11-13 02:34:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:34,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-13 02:34:34,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:34,497 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:34:34,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-13 02:34:34,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 57 [2021-11-13 02:34:34,838 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-13 02:34:34,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 83 [2021-11-13 02:34:35,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:35,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:35,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:35,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:34:35,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:35,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:34:35,213 INFO L354 Elim1Store]: treesize reduction 40, result has 42.9 percent of original size [2021-11-13 02:34:35,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 84 [2021-11-13 02:34:38,265 INFO L354 Elim1Store]: treesize reduction 68, result has 32.7 percent of original size [2021-11-13 02:34:38,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 159 treesize of output 159 [2021-11-13 02:34:38,332 INFO L354 Elim1Store]: treesize reduction 28, result has 31.7 percent of original size [2021-11-13 02:34:38,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 152 treesize of output 156 [2021-11-13 02:34:38,698 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:34:38,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 91 [2021-11-13 02:34:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:34:38,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:41,408 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem10#1_12| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret9#1.ieee.negative| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_19| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_19|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_19|)))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem10#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem10#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem10#1_12|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_19| .cse1))) (store .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret9#1.ieee.negative|) (bvadd (_ bv4 32) |c_ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent|) (bvadd (_ bv8 32) |c_ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa|) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem10#1_12|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem10#1_12|))))) is different from false [2021-11-13 02:34:41,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent|, |v_ULTIMATE.start_testOne_#t~mem10#1_12|, |ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa|, |ULTIMATE.start_testOne_#t~ret9#1.ieee.negative|] [2021-11-13 02:34:41,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974168567] [2021-11-13 02:34:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:41,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:34:41,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:34:41,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:34:41,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 02:34:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:41,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-13 02:34:41,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:41,541 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:34:41,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-13 02:34:41,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 58 [2021-11-13 02:34:41,866 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-13 02:34:41,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 84 [2021-11-13 02:34:42,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:42,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:42,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:34:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:34:42,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:34:42,238 INFO L354 Elim1Store]: treesize reduction 40, result has 42.9 percent of original size [2021-11-13 02:34:42,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 84 [2021-11-13 02:34:44,902 INFO L354 Elim1Store]: treesize reduction 68, result has 32.7 percent of original size [2021-11-13 02:34:44,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 141 treesize of output 153 [2021-11-13 02:34:44,963 INFO L354 Elim1Store]: treesize reduction 28, result has 31.7 percent of original size [2021-11-13 02:34:44,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 149 treesize of output 153 [2021-11-13 02:34:45,273 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:34:45,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 787 treesize of output 747 [2021-11-13 02:34:45,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:34:45,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:55,265 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_26| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem10#1_9| (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa| (_ BitVec 32)) (|ULTIMATE.start_testOne_#t~ret9#1.ieee.negative| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_26|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_26| .cse1))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |ULTIMATE.start_testOne_#t~ret9#1.ieee.negative|) (bvadd (_ bv4 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent|) (bvadd (_ bv8 32) |ULTIMATE.start_testOne_~#f2~0#1.offset|) |ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa|) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem10#1_9|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|) |v_ULTIMATE.start_testOne_#t~mem10#1_9|)) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem10#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem10#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem10#1_9|)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_returnsStructure_~#c~1.base_26|))))))) is different from false [2021-11-13 02:34:55,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ULTIMATE.start_testOne_#t~ret9#1.ieee.exponent|, |v_ULTIMATE.start_testOne_#t~mem10#1_9|, |ULTIMATE.start_testOne_~#f2~0#1.offset|, |ULTIMATE.start_testOne_#t~ret9#1.ieee.mantissa|, |ULTIMATE.start_testOne_#t~ret9#1.ieee.negative|] [2021-11-13 02:34:55,276 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:55,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 02:34:55,276 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-13 02:34:55,278 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 02:34:55,283 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-13 02:34:55,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-13 02:34:55,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-13 02:34:55,286 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-13 02:34:55,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:55,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-13 02:34:55,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2021-11-13 02:34:55,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:34:55,890 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 02:34:55,892 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:34:55,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:34:55 BoogieIcfgContainer [2021-11-13 02:34:55,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:34:55,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:34:55,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:34:55,907 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:34:55,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:19" (3/4) ... [2021-11-13 02:34:55,910 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 02:34:55,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:34:55,911 INFO L158 Benchmark]: Toolchain (without parser) took 37948.42ms. Allocated memory was 54.5MB in the beginning and 119.5MB in the end (delta: 65.0MB). Free memory was 31.1MB in the beginning and 39.1MB in the end (delta: -8.0MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2021-11-13 02:34:55,912 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 35.7MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:34:55,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.75ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 48.3MB in the end (delta: -17.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 02:34:55,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.32ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 46.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:34:55,914 INFO L158 Benchmark]: Boogie Preprocessor took 53.51ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:34:55,914 INFO L158 Benchmark]: RCFGBuilder took 702.48ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 46.3MB in the end (delta: -1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 02:34:55,915 INFO L158 Benchmark]: TraceAbstraction took 36708.81ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 45.8MB in the beginning and 39.1MB in the end (delta: 6.7MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2021-11-13 02:34:55,916 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 119.5MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:34:55,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 35.7MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.75ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 48.3MB in the end (delta: -17.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.32ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 46.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.51ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 702.48ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 46.3MB in the end (delta: -1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 36708.81ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 45.8MB in the beginning and 39.1MB in the end (delta: 6.7MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 119.5MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; [L141] CALL, EXPR returnsStructure(0) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L141] RET, EXPR returnsStructure(0) [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L142] RET, EXPR returnsStructure(1) [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 36.6s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 7 QuantifiedInterpolants, 590 SizeOfPredicates, 7 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/3 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 [2021-11-13 02:34:55,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7994bdd2-b284-4dd9-b17c-7b2fd2edd541/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN