./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0660b.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_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/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 fcfb0681d482dd50f2d20807361558887e88a0e8 .................................................................................................................................................................................................................................................................................................................................... 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_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/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 fcfb0681d482dd50f2d20807361558887e88a0e8 .............................................................................................................................................................................................................................................................................................................................................. 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 20:58:23,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:58:23,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:58:23,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:58:23,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:58:23,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:58:23,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:58:23,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:58:23,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:58:23,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:58:23,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:58:23,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:58:23,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:58:23,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:58:23,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:58:23,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:58:23,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:58:23,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:58:23,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:58:23,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:58:23,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:58:23,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:58:23,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:58:23,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:58:23,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:58:23,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:58:23,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:58:23,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:58:23,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:58:23,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:58:23,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:58:23,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:58:23,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:58:23,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:58:23,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:58:23,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:58:23,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:58:23,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:58:23,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:58:23,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:58:23,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:58:23,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:58:23,091 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:58:23,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:58:23,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:58:23,092 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:58:23,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:58:23,092 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:58:23,092 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:58:23,093 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:58:23,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:58:23,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:58:23,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:58:23,093 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:58:23,093 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:58:23,093 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:58:23,093 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:58:23,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:58:23,094 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:58:23,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:58:23,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:58:23,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:58:23,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:58:23,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:58:23,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:58:23,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:58:23,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:58:23,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:58:23,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:58:23,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:58:23,097 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:58:23,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:58:23,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:58:23,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:58:23,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:58:23,097 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_70a03415-ede8-4796-b21f-2d26462500f5/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 -> fcfb0681d482dd50f2d20807361558887e88a0e8 [2019-12-07 20:58:23,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:58:23,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:58:23,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:58:23,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:58:23,210 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:58:23,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2019-12-07 20:58:23,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/dd8e5a74b/f0e92bcee5794908806b1bb6dd1dc76a/FLAG29ddaec06 [2019-12-07 20:58:23,639 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:58:23,639 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2019-12-07 20:58:23,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/dd8e5a74b/f0e92bcee5794908806b1bb6dd1dc76a/FLAG29ddaec06 [2019-12-07 20:58:23,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/dd8e5a74b/f0e92bcee5794908806b1bb6dd1dc76a [2019-12-07 20:58:23,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:58:23,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:58:23,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:58:23,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:58:23,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:58:23,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6b55ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23, skipping insertion in model container [2019-12-07 20:58:23,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:58:23,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:58:23,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:58:23,855 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:58:23,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:58:23,904 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:58:23,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23 WrapperNode [2019-12-07 20:58:23,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:58:23,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:58:23,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:58:23,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:58:23,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:58:23,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:58:23,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:58:23,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:58:23,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... [2019-12-07 20:58:23,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:58:23,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:58:23,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:58:23,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:58:23,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/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 20:58:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:58:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 20:58:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 20:58:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 20:58:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:58:24,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:58:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 20:58:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 20:58:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:58:24,539 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:58:24,540 INFO L287 CfgBuilder]: Removed 44 assume(true) statements. [2019-12-07 20:58:24,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:58:24 BoogieIcfgContainer [2019-12-07 20:58:24,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:58:24,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:58:24,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:58:24,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:58:24,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:58:23" (1/3) ... [2019-12-07 20:58:24,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cb083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:58:24, skipping insertion in model container [2019-12-07 20:58:24,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:23" (2/3) ... [2019-12-07 20:58:24,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cb083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:58:24, skipping insertion in model container [2019-12-07 20:58:24,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:58:24" (3/3) ... [2019-12-07 20:58:24,545 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b.c [2019-12-07 20:58:24,552 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:58:24,556 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:58:24,564 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:58:24,580 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:58:24,580 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:58:24,580 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:58:24,580 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:58:24,580 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:58:24,580 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:58:24,580 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:58:24,580 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:58:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-12-07 20:58:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 20:58:24,595 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:58:24,596 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:24,596 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:24,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:24,600 INFO L82 PathProgramCache]: Analyzing trace with hash -703808070, now seen corresponding path program 1 times [2019-12-07 20:58:24,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:58:24,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459678159] [2019-12-07 20:58:24,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:58:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:58:24,701 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 20:58:24,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459678159] [2019-12-07 20:58:24,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:58:24,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 20:58:24,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662297766] [2019-12-07 20:58:24,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:58:24,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:58:24,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:58:24,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:58:24,717 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2019-12-07 20:58:24,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:58:24,735 INFO L93 Difference]: Finished difference Result 166 states and 283 transitions. [2019-12-07 20:58:24,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:58:24,736 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 20:58:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:58:24,743 INFO L225 Difference]: With dead ends: 166 [2019-12-07 20:58:24,743 INFO L226 Difference]: Without dead ends: 81 [2019-12-07 20:58:24,745 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 20:58:24,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-12-07 20:58:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-12-07 20:58:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-12-07 20:58:24,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2019-12-07 20:58:24,772 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 10 [2019-12-07 20:58:24,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:58:24,772 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2019-12-07 20:58:24,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:58:24,772 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2019-12-07 20:58:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 20:58:24,772 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:58:24,773 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:58:24,773 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:58:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:58:24,773 INFO L82 PathProgramCache]: Analyzing trace with hash 2034900675, now seen corresponding path program 1 times [2019-12-07 20:58:24,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:58:24,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746418323] [2019-12-07 20:58:24,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:58:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:58:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:58:24,867 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:58:24,867 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:58:24,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:58:24 BoogieIcfgContainer [2019-12-07 20:58:24,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:58:24,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:58:24,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:58:24,894 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:58:24,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:58:24" (3/4) ... [2019-12-07 20:58:24,896 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 20:58:24,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:58:24,898 INFO L168 Benchmark]: Toolchain (without parser) took 1241.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 940.8 MB in the beginning and 966.9 MB in the end (delta: -26.2 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:24,899 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:58:24,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:24,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.01 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:24,900 INFO L168 Benchmark]: Boogie Preprocessor took 39.50 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:24,900 INFO L168 Benchmark]: RCFGBuilder took 556.05 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: 83.1 MB). Peak memory consumption was 83.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:24,901 INFO L168 Benchmark]: TraceAbstraction took 352.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 966.9 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:58:24,901 INFO L168 Benchmark]: Witness Printer took 3.20 ms. Allocated memory is still 1.1 GB. Free memory is still 966.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:58:24,903 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.01 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.50 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 556.05 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: 83.1 MB). Peak memory consumption was 83.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 352.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 966.9 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.20 ms. Allocated memory is still 1.1 GB. Free memory is still 966.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 259]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 258. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L250] double x = __VERIFIER_nondet_double(); [L251] double y = 0.0; VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] COND TRUE x < 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != pi VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L259] __VERIFIER_error() VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 114 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=84occurred 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 20:58:26,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:58:26,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:58:26,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:58:26,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:58:26,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:58:26,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:58:26,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:58:26,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:58:26,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:58:26,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:58:26,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:58:26,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:58:26,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:58:26,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:58:26,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:58:26,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:58:26,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:58:26,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:58:26,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:58:26,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:58:26,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:58:26,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:58:26,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:58:26,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:58:26,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:58:26,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:58:26,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:58:26,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:58:26,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:58:26,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:58:26,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:58:26,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:58:26,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:58:26,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:58:26,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:58:26,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:58:26,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:58:26,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:58:26,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:58:26,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:58:26,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:58:26,279 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:58:26,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:58:26,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:58:26,279 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:58:26,280 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:58:26,280 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:58:26,280 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:58:26,280 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:58:26,280 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:58:26,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:58:26,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:58:26,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:58:26,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:58:26,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:58:26,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:58:26,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:58:26,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:58:26,282 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:58:26,282 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:58:26,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:58:26,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:58:26,282 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:58:26,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:58:26,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:58:26,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:58:26,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:58:26,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:58:26,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:58:26,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:58:26,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:58:26,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:58:26,283 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:58:26,284 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:58:26,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:58:26,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:58:26,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:58:26,284 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_70a03415-ede8-4796-b21f-2d26462500f5/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 -> fcfb0681d482dd50f2d20807361558887e88a0e8 [2019-12-07 20:58:26,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:58:26,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:58:26,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:58:26,474 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:58:26,474 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:58:26,475 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2019-12-07 20:58:26,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/16c4463c4/defa39fa7894493c8a6d0fe89d9eab8d/FLAG16f712624 [2019-12-07 20:58:26,893 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:58:26,894 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2019-12-07 20:58:26,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/16c4463c4/defa39fa7894493c8a6d0fe89d9eab8d/FLAG16f712624 [2019-12-07 20:58:26,908 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/data/16c4463c4/defa39fa7894493c8a6d0fe89d9eab8d [2019-12-07 20:58:26,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:58:26,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:58:26,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:58:26,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:58:26,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:58:26,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:58:26" (1/1) ... [2019-12-07 20:58:26,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203973a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:26, skipping insertion in model container [2019-12-07 20:58:26,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:58:26" (1/1) ... [2019-12-07 20:58:26,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:58:26,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:58:27,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:58:27,106 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:58:27,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:58:27,196 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:58:27,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27 WrapperNode [2019-12-07 20:58:27,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:58:27,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:58:27,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:58:27,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:58:27,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:58:27,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:58:27,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:58:27,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:58:27,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... [2019-12-07 20:58:27,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:58:27,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:58:27,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:58:27,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:58:27,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/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 20:58:27,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 20:58:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 20:58:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:58:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 20:58:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 20:58:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:58:27,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:58:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 20:58:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:59:04,071 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:59:04,072 INFO L287 CfgBuilder]: Removed 44 assume(true) statements. [2019-12-07 20:59:04,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:59:04 BoogieIcfgContainer [2019-12-07 20:59:04,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:59:04,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:59:04,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:59:04,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:59:04,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:58:26" (1/3) ... [2019-12-07 20:59:04,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5a9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:59:04, skipping insertion in model container [2019-12-07 20:59:04,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:58:27" (2/3) ... [2019-12-07 20:59:04,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5a9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:59:04, skipping insertion in model container [2019-12-07 20:59:04,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:59:04" (3/3) ... [2019-12-07 20:59:04,077 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b.c [2019-12-07 20:59:04,083 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:59:04,088 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:59:04,095 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:59:04,111 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:59:04,111 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:59:04,111 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:59:04,111 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:59:04,112 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:59:04,112 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:59:04,112 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:59:04,112 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:59:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2019-12-07 20:59:04,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 20:59:04,127 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:59:04,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:59:04,128 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:59:04,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:59:04,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2019-12-07 20:59:04,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:59:04,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976849080] [2019-12-07 20:59:04,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/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 20:59:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:59:04,456 INFO L264 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:59:04,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:59:04,469 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 20:59:04,470 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:59:04,472 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 20:59:04,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976849080] [2019-12-07 20:59:04,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:59:04,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:59:04,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026639832] [2019-12-07 20:59:04,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:59:04,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:59:04,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:59:04,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:59:04,487 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 2 states. [2019-12-07 20:59:04,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:59:04,509 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2019-12-07 20:59:04,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:59:04,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 20:59:04,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:59:04,518 INFO L225 Difference]: With dead ends: 227 [2019-12-07 20:59:04,518 INFO L226 Difference]: Without dead ends: 111 [2019-12-07 20:59:04,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 20:59:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-12-07 20:59:04,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-12-07 20:59:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-12-07 20:59:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2019-12-07 20:59:04,551 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2019-12-07 20:59:04,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:59:04,551 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2019-12-07 20:59:04,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:59:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2019-12-07 20:59:04,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 20:59:04,552 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:59:04,552 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:59:04,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:59:04,753 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:59:04,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:59:04,754 INFO L82 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2019-12-07 20:59:04,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:59:04,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689406505] [2019-12-07 20:59:04,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/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 20:59:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:59:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:59:05,963 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:59:05,963 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:59:06,165 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:59:06,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:59:06 BoogieIcfgContainer [2019-12-07 20:59:06,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:59:06,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:59:06,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:59:06,217 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:59:06,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:59:04" (3/4) ... [2019-12-07 20:59:06,218 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:59:06,268 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_70a03415-ede8-4796-b21f-2d26462500f5/bin/utaipan/witness.graphml [2019-12-07 20:59:06,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:59:06,270 INFO L168 Benchmark]: Toolchain (without parser) took 39359.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.4 MB in the beginning and 951.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:59:06,271 INFO L168 Benchmark]: CDTParser took 0.62 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 20:59:06,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:59:06,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:59:06,272 INFO L168 Benchmark]: Boogie Preprocessor took 43.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:59:06,272 INFO L168 Benchmark]: RCFGBuilder took 36787.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.4 MB). Peak memory consumption was 76.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:59:06,272 INFO L168 Benchmark]: TraceAbstraction took 2142.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 958.1 MB in the end (delta: 71.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:59:06,272 INFO L168 Benchmark]: Witness Printer took 52.15 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 951.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:59:06,274 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 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 285.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 36787.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.4 MB). Peak memory consumption was 76.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2142.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 958.1 MB in the end (delta: 71.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 11.5 GB. * Witness Printer took 52.15 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 951.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 259]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L250] double x = __VERIFIER_nondet_double(); [L251] double y = 0.0; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L253] COND TRUE x < 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L255] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != pi VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L259] __VERIFIER_error() VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 164 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred 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, 0.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...