./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 188b463bddf1d83ecad723e2243b3ab1810c254e .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 188b463bddf1d83ecad723e2243b3ab1810c254e ...................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:57:21,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:57:21,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:57:21,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:57:21,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:57:21,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:57:21,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:57:21,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:57:21,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:57:21,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:57:21,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:57:21,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:57:21,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:57:21,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:57:21,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:57:21,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:57:21,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:57:21,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:57:21,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:57:21,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:57:21,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:57:21,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:57:21,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:57:21,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:57:21,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:57:21,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:57:21,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:57:21,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:57:21,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:57:21,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:57:21,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:57:21,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:57:21,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:57:21,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:57:21,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:57:22,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:57:22,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:57:22,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:57:22,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:57:22,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:57:22,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:57:22,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:57:22,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:57:22,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:57:22,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:57:22,019 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:57:22,019 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:57:22,019 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:57:22,020 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:57:22,020 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:57:22,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:57:22,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:57:22,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:57:22,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:57:22,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:57:22,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:57:22,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:57:22,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:57:22,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:57:22,023 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-12-09 10:57:22,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:57:22,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:57:22,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:57:22,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:57:22,230 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:57:22,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-12-09 10:57:22,272 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/0a6a9234b/29f524563356451e8aaabd8aa54eb967/FLAGc6f363a18 [2020-12-09 10:57:22,644 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:57:22,645 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-12-09 10:57:22,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/0a6a9234b/29f524563356451e8aaabd8aa54eb967/FLAGc6f363a18 [2020-12-09 10:57:22,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/0a6a9234b/29f524563356451e8aaabd8aa54eb967 [2020-12-09 10:57:22,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:57:22,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:57:22,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:57:22,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:57:22,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:57:22,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448b3f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22, skipping insertion in model container [2020-12-09 10:57:22,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:57:22,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:57:22,773 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2020-12-09 10:57:22,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:57:22,787 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:57:22,796 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2020-12-09 10:57:22,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:57:22,806 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:57:22,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22 WrapperNode [2020-12-09 10:57:22,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:57:22,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:57:22,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:57:22,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:57:22,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:57:22,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:57:22,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:57:22,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:57:22,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... [2020-12-09 10:57:22,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:57:22,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:57:22,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:57:22,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:57:22,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:57:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:57:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:57:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 10:57:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:57:23,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:57:23,057 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 10:57:23,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:23 BoogieIcfgContainer [2020-12-09 10:57:23,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:57:23,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:57:23,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:57:23,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:57:23,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:57:22" (1/3) ... [2020-12-09 10:57:23,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b30c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:57:23, skipping insertion in model container [2020-12-09 10:57:23,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:22" (2/3) ... [2020-12-09 10:57:23,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b30c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:57:23, skipping insertion in model container [2020-12-09 10:57:23,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:23" (3/3) ... [2020-12-09 10:57:23,067 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-12-09 10:57:23,081 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:57:23,084 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:57:23,093 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:57:23,110 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:57:23,110 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:57:23,110 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:57:23,110 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:57:23,110 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:57:23,110 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:57:23,110 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:57:23,110 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:57:23,119 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-12-09 10:57:23,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 10:57:23,123 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:57:23,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 10:57:23,124 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:57:23,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:57:23,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1613777, now seen corresponding path program 1 times [2020-12-09 10:57:23,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:57:23,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135981851] [2020-12-09 10:57:23,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:57:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:57:23,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:57:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:57:23,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:57:23,262 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 10:57:23,262 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 10:57:23,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:57:23,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:57:23 BoogieIcfgContainer [2020-12-09 10:57:23,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:57:23,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:57:23,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:57:23,281 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:57:23,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:23" (3/4) ... [2020-12-09 10:57:23,285 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 10:57:23,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:57:23,287 INFO L168 Benchmark]: Toolchain (without parser) took 617.34 ms. Allocated memory is still 81.8 MB. Free memory was 62.1 MB in the beginning and 42.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:23,288 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 81.8 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:57:23,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.87 ms. Allocated memory is still 81.8 MB. Free memory was 61.8 MB in the beginning and 52.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:23,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.98 ms. Allocated memory is still 81.8 MB. Free memory was 52.7 MB in the beginning and 51.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:23,290 INFO L168 Benchmark]: Boogie Preprocessor took 17.40 ms. Allocated memory is still 81.8 MB. Free memory was 51.2 MB in the beginning and 50.4 MB in the end (delta: 741.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:57:23,291 INFO L168 Benchmark]: RCFGBuilder took 204.18 ms. Allocated memory is still 81.8 MB. Free memory was 50.2 MB in the beginning and 55.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:23,292 INFO L168 Benchmark]: TraceAbstraction took 219.25 ms. Allocated memory is still 81.8 MB. Free memory was 54.7 MB in the beginning and 42.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:23,293 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 81.8 MB. Free memory was 42.7 MB in the beginning and 42.4 MB in the end (delta: 319.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:57:23,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 81.8 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 137.87 ms. Allocated memory is still 81.8 MB. Free memory was 61.8 MB in the beginning and 52.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.98 ms. Allocated memory is still 81.8 MB. Free memory was 52.7 MB in the beginning and 51.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.40 ms. Allocated memory is still 81.8 MB. Free memory was 51.2 MB in the beginning and 50.4 MB in the end (delta: 741.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 204.18 ms. Allocated memory is still 81.8 MB. Free memory was 50.2 MB in the beginning and 55.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 219.25 ms. Allocated memory is still 81.8 MB. Free memory was 54.7 MB in the beginning and 42.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.89 ms. Allocated memory is still 81.8 MB. Free memory was 42.7 MB in the beginning and 42.4 MB in the end (delta: 319.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] COND TRUE x >= -1e10 && x <= 1e10 [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:57:24,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:57:24,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:57:24,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:57:24,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:57:24,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:57:24,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:57:24,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:57:24,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:57:24,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:57:24,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:57:24,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:57:24,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:57:24,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:57:24,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:57:24,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:57:24,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:57:24,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:57:24,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:57:24,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:57:24,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:57:24,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:57:24,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:57:24,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:57:24,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:57:24,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:57:24,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:57:24,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:57:24,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:57:24,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:57:24,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:57:24,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:57:24,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:57:24,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:57:24,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:57:24,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:57:24,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:57:24,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:57:24,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:57:24,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:57:24,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:57:24,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 10:57:24,952 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:57:24,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:57:24,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:57:24,953 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:57:24,953 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:57:24,953 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:57:24,953 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:57:24,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:57:24,954 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:57:24,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:57:24,954 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:57:24,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:57:24,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:57:24,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:57:24,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:57:24,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:57:24,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:57:24,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:57:24,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:57:24,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:57:24,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:57:24,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:57:24,960 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:57:24,960 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:57:24,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:57:24,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:57:24,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:57:24,961 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-12-09 10:57:25,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:57:25,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:57:25,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:57:25,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:57:25,205 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:57:25,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-12-09 10:57:25,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/f8920df83/e0754ccba0a943c5abd0d03a0cf3fc8d/FLAGff3b87f00 [2020-12-09 10:57:25,603 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:57:25,603 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-12-09 10:57:25,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/f8920df83/e0754ccba0a943c5abd0d03a0cf3fc8d/FLAGff3b87f00 [2020-12-09 10:57:25,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/data/f8920df83/e0754ccba0a943c5abd0d03a0cf3fc8d [2020-12-09 10:57:25,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:57:25,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:57:25,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:57:25,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:57:25,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:57:25,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf7974a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25, skipping insertion in model container [2020-12-09 10:57:25,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:57:25,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:57:25,726 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2020-12-09 10:57:25,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:57:25,743 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:57:25,752 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2020-12-09 10:57:25,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:57:25,765 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:57:25,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25 WrapperNode [2020-12-09 10:57:25,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:57:25,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:57:25,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:57:25,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:57:25,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:57:25,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:57:25,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:57:25,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:57:25,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... [2020-12-09 10:57:25,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:57:25,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:57:25,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:57:25,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:57:25,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:57:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 10:57:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:57:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:57:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:57:26,253 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:57:26,253 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 10:57:26,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:26 BoogieIcfgContainer [2020-12-09 10:57:26,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:57:26,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:57:26,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:57:26,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:57:26,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:57:25" (1/3) ... [2020-12-09 10:57:26,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7275f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:57:26, skipping insertion in model container [2020-12-09 10:57:26,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:25" (2/3) ... [2020-12-09 10:57:26,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7275f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:57:26, skipping insertion in model container [2020-12-09 10:57:26,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:26" (3/3) ... [2020-12-09 10:57:26,263 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-12-09 10:57:26,275 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:57:26,277 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:57:26,285 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:57:26,301 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:57:26,302 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:57:26,302 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:57:26,302 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:57:26,302 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:57:26,302 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:57:26,302 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:57:26,302 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:57:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-09 10:57:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 10:57:26,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:57:26,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 10:57:26,314 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:57:26,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:57:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-12-09 10:57:26,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:57:26,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832683190] [2020-12-09 10:57:26,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 10:57:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:57:26,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:57:26,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:57:26,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:57:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:57:26,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:57:26,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832683190] [2020-12-09 10:57:26,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:57:26,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:57:26,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006707707] [2020-12-09 10:57:26,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:57:26,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:57:26,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:57:26,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:57:26,580 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-12-09 10:57:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:57:26,594 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-12-09 10:57:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:57:26,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 10:57:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:57:26,601 INFO L225 Difference]: With dead ends: 18 [2020-12-09 10:57:26,601 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:57:26,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:57:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:57:26,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:57:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:57:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:57:26,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-12-09 10:57:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:57:26,620 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:57:26,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:57:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:57:26,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:57:26,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:57:26,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 10:57:26,847 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 10:57:26,847 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 10:57:26,847 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 10:57:26,847 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 10:57:26,848 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-12-09 10:57:26,848 INFO L265 CegarLoopResult]: At program point L18(lines 10 19) the Hoare annotation is: true [2020-12-09 10:57:26,848 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-09 10:57:26,848 INFO L265 CegarLoopResult]: At program point L15-1(lines 15 17) the Hoare annotation is: true [2020-12-09 10:57:26,848 INFO L262 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-12-09 10:57:26,848 INFO L262 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-12-09 10:57:26,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:57:26 BoogieIcfgContainer [2020-12-09 10:57:26,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:57:26,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:57:26,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:57:26,853 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:57:26,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:26" (3/4) ... [2020-12-09 10:57:26,856 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:57:26,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 10:57:26,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 10:57:26,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 10:57:26,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:57:26,883 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b31ac38-545b-424a-9aca-42fc2678a225/bin/utaipan/witness.graphml [2020-12-09 10:57:26,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:57:26,884 INFO L168 Benchmark]: Toolchain (without parser) took 1263.55 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 38.2 MB in the beginning and 48.7 MB in the end (delta: -10.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:26,885 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:57:26,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.41 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 28.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:26,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.65 ms. Allocated memory is still 58.7 MB. Free memory was 28.1 MB in the beginning and 42.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:26,886 INFO L168 Benchmark]: Boogie Preprocessor took 29.52 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 42.4 MB in the beginning and 65.5 MB in the end (delta: -23.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:26,887 INFO L168 Benchmark]: RCFGBuilder took 425.77 ms. Allocated memory is still 81.8 MB. Free memory was 65.5 MB in the beginning and 54.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:26,887 INFO L168 Benchmark]: TraceAbstraction took 595.92 ms. Allocated memory is still 81.8 MB. Free memory was 54.0 MB in the beginning and 51.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:26,887 INFO L168 Benchmark]: Witness Printer took 30.07 ms. Allocated memory is still 81.8 MB. Free memory was 51.2 MB in the beginning and 48.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:57:26,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 144.41 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 28.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.65 ms. Allocated memory is still 58.7 MB. Free memory was 28.1 MB in the beginning and 42.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.52 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 42.4 MB in the beginning and 65.5 MB in the end (delta: -23.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 425.77 ms. Allocated memory is still 81.8 MB. Free memory was 65.5 MB in the beginning and 54.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 595.92 ms. Allocated memory is still 81.8 MB. Free memory was 54.0 MB in the beginning and 51.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 30.07 ms. Allocated memory is still 81.8 MB. Free memory was 51.2 MB in the beginning and 48.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 3 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...