./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 .............................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 14:31:55,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:31:55,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:31:55,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:31:55,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:31:55,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:31:55,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:31:55,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:31:55,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:31:55,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:31:55,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:31:55,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:31:55,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:31:55,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:31:55,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:31:55,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:31:55,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:31:55,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:31:55,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:31:55,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:31:55,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:31:55,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:31:55,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:31:55,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:31:55,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:31:55,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:31:55,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:31:55,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:31:55,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:31:55,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:31:55,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:31:55,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:31:55,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:31:55,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:31:55,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:31:55,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:31:55,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:31:55,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:31:55,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:31:55,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:31:55,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:31:55,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:31:55,120 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:31:55,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:31:55,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:31:55,121 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:31:55,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:31:55,121 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:31:55,121 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:31:55,122 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:31:55,122 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:31:55,122 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:31:55,122 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:31:55,122 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:31:55,122 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:31:55,122 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:31:55,123 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:31:55,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:31:55,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:31:55,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:31:55,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:31:55,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:31:55,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:31:55,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:31:55,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:31:55,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:31:55,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:31:55,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:31:55,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:31:55,125 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:31:55,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:31:55,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:31:55,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:31:55,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:31:55,126 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 [2019-12-07 14:31:55,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:31:55,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:31:55,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:31:55,237 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:31:55,237 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:31:55,238 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2019-12-07 14:31:55,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/b2dc1352f/3e11301eaa264a759bf7a2277144bfd7/FLAG9d8a7a1ee [2019-12-07 14:31:55,689 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:31:55,689 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2019-12-07 14:31:55,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/b2dc1352f/3e11301eaa264a759bf7a2277144bfd7/FLAG9d8a7a1ee [2019-12-07 14:31:55,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/b2dc1352f/3e11301eaa264a759bf7a2277144bfd7 [2019-12-07 14:31:55,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:31:55,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:31:55,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:31:55,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:31:55,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:31:55,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:55,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff5633e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55, skipping insertion in model container [2019-12-07 14:31:55,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:55,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:31:55,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:31:55,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:31:55,904 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:31:55,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:31:55,955 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:31:55,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55 WrapperNode [2019-12-07 14:31:55,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:31:55,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:31:55,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:31:55,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:31:55,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:55,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:55,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:31:55,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:31:55,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:31:55,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:31:55,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:55,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:55,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:55,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:56,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:56,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:56,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... [2019-12-07 14:31:56,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:31:56,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:31:56,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:31:56,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:31:56,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:31:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:31:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 14:31:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:31:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 14:31:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:31:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:31:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:31:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:31:56,355 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:31:56,356 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 14:31:56,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:31:56 BoogieIcfgContainer [2019-12-07 14:31:56,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:31:56,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:31:56,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:31:56,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:31:56,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:31:55" (1/3) ... [2019-12-07 14:31:56,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9244f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:31:56, skipping insertion in model container [2019-12-07 14:31:56,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:55" (2/3) ... [2019-12-07 14:31:56,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9244f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:31:56, skipping insertion in model container [2019-12-07 14:31:56,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:31:56" (3/3) ... [2019-12-07 14:31:56,362 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2019-12-07 14:31:56,368 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:31:56,373 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:31:56,380 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:31:56,395 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:31:56,395 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:31:56,395 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:31:56,395 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:31:56,395 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:31:56,396 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:31:56,396 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:31:56,396 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:31:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-07 14:31:56,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 14:31:56,409 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:31:56,409 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:31:56,409 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:31:56,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:31:56,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1740710163, now seen corresponding path program 1 times [2019-12-07 14:31:56,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:31:56,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193329924] [2019-12-07 14:31:56,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:31:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:31:56,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:31:56,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193329924] [2019-12-07 14:31:56,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:31:56,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:31:56,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250320464] [2019-12-07 14:31:56,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:31:56,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:31:56,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:31:56,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:31:56,513 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-12-07 14:31:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:31:56,524 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2019-12-07 14:31:56,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:31:56,525 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 14:31:56,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:31:56,532 INFO L225 Difference]: With dead ends: 43 [2019-12-07 14:31:56,532 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 14:31:56,534 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:31:56,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 14:31:56,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 14:31:56,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 14:31:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-12-07 14:31:56,556 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2019-12-07 14:31:56,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:31:56,556 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-12-07 14:31:56,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:31:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-12-07 14:31:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 14:31:56,557 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:31:56,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:31:56,557 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:31:56,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:31:56,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1299276117, now seen corresponding path program 1 times [2019-12-07 14:31:56,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:31:56,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324045448] [2019-12-07 14:31:56,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:31:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:31:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:31:56,664 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 14:31:56,664 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:31:56,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:31:56 BoogieIcfgContainer [2019-12-07 14:31:56,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:31:56,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:31:56,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:31:56,689 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:31:56,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:31:56" (3/4) ... [2019-12-07 14:31:56,692 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:31:56,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:31:56,694 INFO L168 Benchmark]: Toolchain (without parser) took 985.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -75.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:31:56,694 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:31:56,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:31:56,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:31:56,695 INFO L168 Benchmark]: Boogie Preprocessor took 26.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:31:56,696 INFO L168 Benchmark]: RCFGBuilder took 340.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:31:56,696 INFO L168 Benchmark]: TraceAbstraction took 331.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:31:56,696 INFO L168 Benchmark]: Witness Printer took 3.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:31:56,699 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 340.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 331.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; [L132] double x = 1.0 / 0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L133] double res = __ieee754_log(x); [L19] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 14:31:58,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:31:58,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:31:58,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:31:58,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:31:58,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:31:58,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:31:58,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:31:58,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:31:58,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:31:58,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:31:58,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:31:58,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:31:58,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:31:58,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:31:58,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:31:58,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:31:58,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:31:58,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:31:58,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:31:58,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:31:58,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:31:58,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:31:58,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:31:58,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:31:58,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:31:58,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:31:58,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:31:58,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:31:58,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:31:58,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:31:58,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:31:58,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:31:58,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:31:58,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:31:58,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:31:58,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:31:58,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:31:58,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:31:58,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:31:58,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:31:58,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:31:58,111 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:31:58,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:31:58,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:31:58,112 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:31:58,112 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:31:58,112 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:31:58,113 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:31:58,113 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:31:58,113 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:31:58,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:31:58,113 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:31:58,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:31:58,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:31:58,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:31:58,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:31:58,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:31:58,114 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:31:58,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:31:58,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:31:58,115 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:31:58,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:31:58,115 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:31:58,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:31:58,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:31:58,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:31:58,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:31:58,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:31:58,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:31:58,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:31:58,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:31:58,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:31:58,116 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:31:58,116 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:31:58,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:31:58,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:31:58,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:31:58,117 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 [2019-12-07 14:31:58,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:31:58,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:31:58,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:31:58,289 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:31:58,289 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:31:58,290 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2019-12-07 14:31:58,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/094cbf243/d31b23c408db421a98d91612843e30bd/FLAG45a0c1fca [2019-12-07 14:31:58,659 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:31:58,660 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2019-12-07 14:31:58,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/094cbf243/d31b23c408db421a98d91612843e30bd/FLAG45a0c1fca [2019-12-07 14:31:58,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/data/094cbf243/d31b23c408db421a98d91612843e30bd [2019-12-07 14:31:58,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:31:58,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:31:58,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:31:58,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:31:58,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:31:58,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357db60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58, skipping insertion in model container [2019-12-07 14:31:58,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:31:58,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:31:58,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:31:58,856 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:31:58,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:31:58,940 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:31:58,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58 WrapperNode [2019-12-07 14:31:58,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:31:58,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:31:58,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:31:58,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:31:58,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:31:58,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:31:58,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:31:58,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:31:58,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:58,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:59,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:59,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... [2019-12-07 14:31:59,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:31:59,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:31:59,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:31:59,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:31:59,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 14:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 14:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 14:31:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:31:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:31:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 14:31:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:32:23,778 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:32:23,779 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 14:32:23,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:32:23 BoogieIcfgContainer [2019-12-07 14:32:23,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:32:23,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:32:23,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:32:23,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:32:23,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:31:58" (1/3) ... [2019-12-07 14:32:23,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f04775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:32:23, skipping insertion in model container [2019-12-07 14:32:23,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:31:58" (2/3) ... [2019-12-07 14:32:23,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f04775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:32:23, skipping insertion in model container [2019-12-07 14:32:23,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:32:23" (3/3) ... [2019-12-07 14:32:23,784 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2019-12-07 14:32:23,790 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:32:23,794 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:32:23,801 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:32:23,815 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:32:23,816 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:32:23,816 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:32:23,816 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:32:23,816 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:32:23,816 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:32:23,816 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:32:23,816 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:32:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-07 14:32:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 14:32:23,829 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:32:23,829 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:32:23,830 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:32:23,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:32:23,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-12-07 14:32:23,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:32:23,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006830027] [2019-12-07 14:32:23,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 14:32:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:32:24,655 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:32:24,660 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:32:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:32:24,672 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:32:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:32:24,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006830027] [2019-12-07 14:32:24,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:32:24,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:32:24,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881543523] [2019-12-07 14:32:24,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:32:24,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:32:24,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:32:24,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:32:24,692 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-07 14:32:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:32:24,706 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-12-07 14:32:24,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:32:24,707 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 14:32:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:32:24,715 INFO L225 Difference]: With dead ends: 62 [2019-12-07 14:32:24,715 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 14:32:24,717 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:32:24,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 14:32:24,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 14:32:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 14:32:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-12-07 14:32:24,741 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-12-07 14:32:24,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:32:24,741 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-12-07 14:32:24,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:32:24,741 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-12-07 14:32:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 14:32:24,742 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:32:24,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:32:24,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:32:24,943 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:32:24,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:32:24,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-12-07 14:32:24,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:32:24,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566358640] [2019-12-07 14:32:24,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 14:32:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:32:25,806 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:32:25,809 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:32:25,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:32:25,885 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:32:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:32:25,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566358640] [2019-12-07 14:32:25,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:32:25,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 14:32:25,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674049812] [2019-12-07 14:32:25,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:32:25,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:32:25,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:32:25,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:32:25,952 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 6 states. [2019-12-07 14:32:26,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:32:26,058 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2019-12-07 14:32:26,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:32:26,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 14:32:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:32:26,064 INFO L225 Difference]: With dead ends: 38 [2019-12-07 14:32:26,064 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 14:32:26,065 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:32:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 14:32:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 14:32:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 14:32:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-12-07 14:32:26,069 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2019-12-07 14:32:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:32:26,069 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-12-07 14:32:26,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:32:26,070 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-07 14:32:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 14:32:26,070 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:32:26,070 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:32:26,271 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:32:26,271 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:32:26,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:32:26,272 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2019-12-07 14:32:26,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:32:26,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018522741] [2019-12-07 14:32:26,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 14:32:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:32:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:32:26,694 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:32:26,694 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:32:26,894 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:32:26,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:32:26 BoogieIcfgContainer [2019-12-07 14:32:26,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:32:26,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:32:26,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:32:26,937 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:32:26,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:32:23" (3/4) ... [2019-12-07 14:32:26,939 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:32:26,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9d41e125-7ee8-493f-aba5-e12ffb262d13/bin/utaipan/witness.graphml [2019-12-07 14:32:26,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:32:26,998 INFO L168 Benchmark]: Toolchain (without parser) took 28319.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 952.4 MB in the beginning and 965.7 MB in the end (delta: -13.3 MB). Peak memory consumption was 97.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:32:26,998 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:32:26,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:32:26,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:32:27,000 INFO L168 Benchmark]: Boogie Preprocessor took 27.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:32:27,000 INFO L168 Benchmark]: RCFGBuilder took 24774.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:32:27,000 INFO L168 Benchmark]: TraceAbstraction took 3156.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 972.7 MB in the end (delta: 85.5 MB). Peak memory consumption was 85.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:32:27,001 INFO L168 Benchmark]: Witness Printer took 59.18 ms. Allocated memory is still 1.1 GB. Free memory was 972.7 MB in the beginning and 965.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:32:27,003 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 24774.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3156.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 972.7 MB in the end (delta: 85.5 MB). Peak memory consumption was 85.5 MB. Max. memory is 11.5 GB. * Witness Printer took 59.18 ms. Allocated memory is still 1.1 GB. Free memory was 972.7 MB in the beginning and 965.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 137]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L132] double x = 1.0 / 0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L58] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L71] COND TRUE hx >= 0x7ff00000 [L72] return x + x; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L133] double res = __ieee754_log(x); [L19] __int32_t hx, lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 33 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 5 QuantifiedInterpolants, 1750 SizeOfPredicates, 7 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...