./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_3.i --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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/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 8f53d9ed7fe14462ecadf09af148bc11769a4a61 ............................................................................................................................................................................................................................................... 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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/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 8f53d9ed7fe14462ecadf09af148bc11769a4a61 .......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:06:22,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:06:22,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:06:22,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:06:22,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:06:22,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:06:22,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:06:22,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:06:22,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:06:22,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:06:22,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:06:22,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:06:22,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:06:22,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:06:22,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:06:22,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:06:22,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:06:22,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:06:22,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:06:22,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:06:22,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:06:22,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:06:22,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:06:22,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:06:22,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:06:22,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:06:22,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:06:22,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:06:22,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:06:22,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:06:22,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:06:22,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:06:22,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:06:22,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:06:22,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:06:22,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:06:22,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:06:22,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:06:22,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:06:22,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:06:22,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:06:22,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 06:06:22,080 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:06:22,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:06:22,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:06:22,081 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:06:22,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:06:22,081 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:06:22,081 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:06:22,081 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:06:22,081 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:06:22,082 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:06:22,082 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:06:22,082 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:06:22,082 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:06:22,082 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:06:22,082 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:06:22,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:06:22,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:06:22,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:06:22,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:06:22,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:06:22,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:06:22,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:06:22,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:06:22,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:06:22,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:06:22,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:06:22,085 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:06:22,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:06:22,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:06:22,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:06:22,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:06:22,085 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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2020-12-09 06:06:22,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:06:22,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:06:22,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:06:22,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:06:22,295 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:06:22,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-12-09 06:06:22,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/f4b1cdad7/6873731f37a74ccab0e355fb2a54e105/FLAG1f134663c [2020-12-09 06:06:22,698 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:06:22,699 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-12-09 06:06:22,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/f4b1cdad7/6873731f37a74ccab0e355fb2a54e105/FLAG1f134663c [2020-12-09 06:06:22,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/f4b1cdad7/6873731f37a74ccab0e355fb2a54e105 [2020-12-09 06:06:22,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:06:22,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:06:22,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:06:22,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:06:22,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:06:22,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da8ce3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22, skipping insertion in model container [2020-12-09 06:06:22,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:06:22,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:06:22,844 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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2020-12-09 06:06:22,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:06:22,853 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:06:22,863 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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2020-12-09 06:06:22,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:06:22,873 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:06:22,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22 WrapperNode [2020-12-09 06:06:22,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:06:22,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:06:22,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:06:22,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:06:22,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:06:22,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:06:22,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:06:22,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:06:22,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... [2020-12-09 06:06:22,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:06:22,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:06:22,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:06:22,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:06:22,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/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 06:06:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 06:06:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:06:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:06:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:06:23,152 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:06:23,152 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 06:06:23,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:23 BoogieIcfgContainer [2020-12-09 06:06:23,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:06:23,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:06:23,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:06:23,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:06:23,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:06:22" (1/3) ... [2020-12-09 06:06:23,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636825bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:06:23, skipping insertion in model container [2020-12-09 06:06:23,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:22" (2/3) ... [2020-12-09 06:06:23,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636825bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:06:23, skipping insertion in model container [2020-12-09 06:06:23,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:23" (3/3) ... [2020-12-09 06:06:23,162 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2020-12-09 06:06:23,175 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:06:23,177 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:06:23,187 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:06:23,209 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:06:23,209 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:06:23,209 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:06:23,209 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:06:23,209 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:06:23,209 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:06:23,210 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:06:23,210 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:06:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-12-09 06:06:23,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 06:06:23,225 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:23,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 06:06:23,226 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:23,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:23,231 INFO L82 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2020-12-09 06:06:23,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:06:23,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532323438] [2020-12-09 06:06:23,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:06:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:06:23,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:06:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:06:23,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:06:23,357 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 06:06:23,358 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 06:06:23,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 06:06:23,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:06:23 BoogieIcfgContainer [2020-12-09 06:06:23,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:06:23,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:06:23,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:06:23,375 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:06:23,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:23" (3/4) ... [2020-12-09 06:06:23,379 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 06:06:23,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:06:23,381 INFO L168 Benchmark]: Toolchain (without parser) took 664.36 ms. Allocated memory is still 100.7 MB. Free memory was 60.5 MB in the beginning and 58.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:23,382 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 100.7 MB. Free memory is still 76.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:06:23,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.26 ms. Allocated memory is still 100.7 MB. Free memory was 60.4 MB in the beginning and 74.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:23,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.36 ms. Allocated memory is still 100.7 MB. Free memory was 74.7 MB in the beginning and 73.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:23,385 INFO L168 Benchmark]: Boogie Preprocessor took 12.51 ms. Allocated memory is still 100.7 MB. Free memory was 73.3 MB in the beginning and 72.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:23,386 INFO L168 Benchmark]: RCFGBuilder took 245.21 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 70.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:23,387 INFO L168 Benchmark]: TraceAbstraction took 218.32 ms. Allocated memory is still 100.7 MB. Free memory was 70.2 MB in the beginning and 58.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:23,387 INFO L168 Benchmark]: Witness Printer took 4.08 ms. Allocated memory is still 100.7 MB. Free memory was 58.3 MB in the beginning and 58.0 MB in the end (delta: 352.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:06:23,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 100.7 MB. Free memory is still 76.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 157.26 ms. Allocated memory is still 100.7 MB. Free memory was 60.4 MB in the beginning and 74.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.36 ms. Allocated memory is still 100.7 MB. Free memory was 74.7 MB in the beginning and 73.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 12.51 ms. Allocated memory is still 100.7 MB. Free memory was 73.3 MB in the beginning and 72.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 245.21 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 70.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 218.32 ms. Allocated memory is still 100.7 MB. Free memory was 70.2 MB in the beginning and 58.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.08 ms. Allocated memory is still 100.7 MB. Free memory was 58.3 MB in the beginning and 58.0 MB in the end (delta: 352.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: 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 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && result >= -1.001f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 06:06:25,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:06:25,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:06:25,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:06:25,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:06:25,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:06:25,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:06:25,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:06:25,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:06:25,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:06:25,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:06:25,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:06:25,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:06:25,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:06:25,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:06:25,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:06:25,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:06:25,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:06:25,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:06:25,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:06:25,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:06:25,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:06:25,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:06:25,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:06:25,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:06:25,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:06:25,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:06:25,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:06:25,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:06:25,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:06:25,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:06:25,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:06:25,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:06:25,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:06:25,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:06:25,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:06:25,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:06:25,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:06:25,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:06:25,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:06:25,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:06:25,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 06:06:25,115 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:06:25,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:06:25,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:06:25,116 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:06:25,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:06:25,116 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:06:25,116 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:06:25,117 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:06:25,117 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:06:25,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:06:25,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:06:25,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:06:25,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:06:25,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:06:25,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:06:25,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 06:06:25,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:06:25,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:06:25,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:06:25,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:06:25,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:06:25,119 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 06:06:25,120 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 06:06:25,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:06:25,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:06:25,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:06:25,120 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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2020-12-09 06:06:25,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:06:25,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:06:25,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:06:25,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:06:25,369 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:06:25,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-12-09 06:06:25,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/ab11089fa/6b14684e5b4c47809797e0f061332f17/FLAG57a6b876f [2020-12-09 06:06:25,791 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:06:25,792 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/sv-benchmarks/c/floats-cdfpl/sine_3.i [2020-12-09 06:06:25,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/ab11089fa/6b14684e5b4c47809797e0f061332f17/FLAG57a6b876f [2020-12-09 06:06:25,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/data/ab11089fa/6b14684e5b4c47809797e0f061332f17 [2020-12-09 06:06:25,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:06:25,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:06:25,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:06:25,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:06:25,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:06:25,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:25,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6caf30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25, skipping insertion in model container [2020-12-09 06:06:25,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:25,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:06:25,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:06:25,933 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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2020-12-09 06:06:25,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:06:25,945 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:06:25,965 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_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2020-12-09 06:06:25,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:06:25,982 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:06:25,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25 WrapperNode [2020-12-09 06:06:25,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:06:25,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:06:25,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:06:25,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:06:25,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:25,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:06:26,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:06:26,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:06:26,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:06:26,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... [2020-12-09 06:06:26,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:06:26,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:06:26,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:06:26,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:06:26,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/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 06:06:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 06:06:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:06:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:06:26,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:06:28,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:06:28,448 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 06:06:28,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:28 BoogieIcfgContainer [2020-12-09 06:06:28,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:06:28,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:06:28,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:06:28,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:06:28,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:06:25" (1/3) ... [2020-12-09 06:06:28,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a88243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:06:28, skipping insertion in model container [2020-12-09 06:06:28,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:25" (2/3) ... [2020-12-09 06:06:28,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a88243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:06:28, skipping insertion in model container [2020-12-09 06:06:28,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:28" (3/3) ... [2020-12-09 06:06:28,455 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2020-12-09 06:06:28,465 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:06:28,467 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:06:28,474 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:06:28,490 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:06:28,490 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:06:28,490 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:06:28,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:06:28,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:06:28,490 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:06:28,491 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:06:28,491 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:06:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-09 06:06:28,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 06:06:28,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:28,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 06:06:28,502 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:28,506 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2020-12-09 06:06:28,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:28,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754764254] [2020-12-09 06:06:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/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 06:06:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:29,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 06:06:29,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:29,058 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 06:06:29,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:29,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754764254] [2020-12-09 06:06:29,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:06:29,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:06:29,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782831673] [2020-12-09 06:06:29,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 06:06:29,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:29,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 06:06:29,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:06:29,073 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2020-12-09 06:06:29,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:29,083 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-09 06:06:29,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 06:06:29,084 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 06:06:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:29,089 INFO L225 Difference]: With dead ends: 19 [2020-12-09 06:06:29,089 INFO L226 Difference]: Without dead ends: 7 [2020-12-09 06:06:29,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:06:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-09 06:06:29,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-09 06:06:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-09 06:06:29,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-12-09 06:06:29,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2020-12-09 06:06:29,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:29,111 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-12-09 06:06:29,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 06:06:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-09 06:06:29,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 06:06:29,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:29,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 06:06:29,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 06:06:29,314 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:29,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:29,317 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2020-12-09 06:06:29,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:29,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670128597] [2020-12-09 06:06:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 06:08:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:08:07,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:08:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:08:12,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:08:12,565 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 06:08:12,565 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 06:08:12,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 06:08:12,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:08:12 BoogieIcfgContainer [2020-12-09 06:08:12,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:08:12,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:08:12,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:08:12,785 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:08:12,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:28" (3/4) ... [2020-12-09 06:08:12,787 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 06:08:12,809 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6d6e0ddd-0c65-4b2e-97c8-c6b844e1a398/bin/utaipan/witness.graphml [2020-12-09 06:08:12,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:08:12,811 INFO L168 Benchmark]: Toolchain (without parser) took 106996.05 ms. Allocated memory was 75.5 MB in the beginning and 109.1 MB in the end (delta: 33.6 MB). Free memory was 60.9 MB in the beginning and 74.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:12,811 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 75.5 MB. Free memory is still 58.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:08:12,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.86 ms. Allocated memory is still 75.5 MB. Free memory was 60.9 MB in the beginning and 59.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:12,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.29 ms. Allocated memory is still 75.5 MB. Free memory was 59.0 MB in the beginning and 57.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:08:12,813 INFO L168 Benchmark]: Boogie Preprocessor took 17.24 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 56.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:12,813 INFO L168 Benchmark]: RCFGBuilder took 2423.20 ms. Allocated memory is still 75.5 MB. Free memory was 56.4 MB in the beginning and 45.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:12,814 INFO L168 Benchmark]: TraceAbstraction took 104334.08 ms. Allocated memory was 75.5 MB in the beginning and 109.1 MB in the end (delta: 33.6 MB). Free memory was 45.0 MB in the beginning and 76.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:12,814 INFO L168 Benchmark]: Witness Printer took 24.63 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:12,816 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 75.5 MB. Free memory is still 58.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 167.86 ms. Allocated memory is still 75.5 MB. Free memory was 60.9 MB in the beginning and 59.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 24.29 ms. Allocated memory is still 75.5 MB. Free memory was 59.0 MB in the beginning and 57.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.24 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 56.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2423.20 ms. Allocated memory is still 75.5 MB. Free memory was 56.4 MB in the beginning and 45.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 104334.08 ms. Allocated memory was 75.5 MB in the beginning and 109.1 MB in the end (delta: 33.6 MB). Free memory was 45.0 MB in the beginning and 76.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 24.63 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && result >= -1.001f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 104.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 98.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 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 incorrect! Received shutdown request...