./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ............................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-08 20:20:01,816 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 20:20:01,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 20:20:01,825 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 20:20:01,825 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 20:20:01,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 20:20:01,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 20:20:01,828 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 20:20:01,829 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 20:20:01,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 20:20:01,830 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 20:20:01,830 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 20:20:01,831 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 20:20:01,831 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 20:20:01,832 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 20:20:01,833 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 20:20:01,833 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 20:20:01,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 20:20:01,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 20:20:01,837 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 20:20:01,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 20:20:01,838 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 20:20:01,840 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 20:20:01,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 20:20:01,840 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 20:20:01,841 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 20:20:01,842 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 20:20:01,842 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 20:20:01,843 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 20:20:01,843 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 20:20:01,844 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 20:20:01,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 20:20:01,844 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 20:20:01,844 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 20:20:01,845 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 20:20:01,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 20:20:01,846 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 20:20:01,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 20:20:01,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 20:20:01,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 20:20:01,854 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 20:20:01,854 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 20:20:01,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 20:20:01,855 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 20:20:01,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 20:20:01,855 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 20:20:01,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 20:20:01,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 20:20:01,856 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 20:20:01,856 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 20:20:01,856 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 20:20:01,856 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 20:20:01,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 20:20:01,856 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 20:20:01,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 20:20:01,857 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 20:20:01,857 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 20:20:01,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 20:20:01,857 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 20:20:01,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 20:20:01,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 20:20:01,857 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 20:20:01,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 20:20:01,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 20:20:01,858 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 20:20:01,858 INFO L133 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/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2018-12-08 20:20:01,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 20:20:01,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 20:20:01,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 20:20:01,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 20:20:01,894 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 20:20:01,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 20:20:01,938 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/efbc2c57e/f77cd328b8f742cea183dd8aeda97efc/FLAG56ba72e83 [2018-12-08 20:20:02,380 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 20:20:02,380 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 20:20:02,384 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/efbc2c57e/f77cd328b8f742cea183dd8aeda97efc/FLAG56ba72e83 [2018-12-08 20:20:02,393 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/efbc2c57e/f77cd328b8f742cea183dd8aeda97efc [2018-12-08 20:20:02,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 20:20:02,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 20:20:02,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:02,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 20:20:02,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 20:20:02,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6fe265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02, skipping insertion in model container [2018-12-08 20:20:02,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 20:20:02,415 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 20:20:02,514 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:02,520 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 20:20:02,540 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:02,580 INFO L195 MainTranslator]: Completed translation [2018-12-08 20:20:02,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02 WrapperNode [2018-12-08 20:20:02,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:02,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 20:20:02,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 20:20:02,581 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 20:20:02,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 20:20:02,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 20:20:02,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 20:20:02,597 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 20:20:02,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... [2018-12-08 20:20:02,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 20:20:02,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 20:20:02,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 20:20:02,621 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 20:20:02,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 [2018-12-08 20:20:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 20:20:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 20:20:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 20:20:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 20:20:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 20:20:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 20:20:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-12-08 20:20:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-12-08 20:20:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 20:20:02,895 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 20:20:02,895 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-12-08 20:20:02,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:02 BoogieIcfgContainer [2018-12-08 20:20:02,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 20:20:02,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 20:20:02,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 20:20:02,897 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 20:20:02,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:20:02" (1/3) ... [2018-12-08 20:20:02,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386b8d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:02, skipping insertion in model container [2018-12-08 20:20:02,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:02" (2/3) ... [2018-12-08 20:20:02,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386b8d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:02, skipping insertion in model container [2018-12-08 20:20:02,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:02" (3/3) ... [2018-12-08 20:20:02,899 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-12-08 20:20:02,905 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 20:20:02,909 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 20:20:02,918 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 20:20:02,936 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 20:20:02,937 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 20:20:02,937 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 20:20:02,937 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 20:20:02,937 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 20:20:02,937 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 20:20:02,937 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 20:20:02,937 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 20:20:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-12-08 20:20:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 20:20:02,951 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:02,952 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:02,953 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:02,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:02,956 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2018-12-08 20:20:02,958 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:20:02,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:02,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:02,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:02,986 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:20:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:03,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:03,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:03,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 20:20:03,035 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:20:03,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 20:20:03,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 20:20:03,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 20:20:03,047 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-12-08 20:20:03,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:03,062 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-12-08 20:20:03,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 20:20:03,063 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-08 20:20:03,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:03,068 INFO L225 Difference]: With dead ends: 108 [2018-12-08 20:20:03,068 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 20:20:03,070 INFO L631 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 [2018-12-08 20:20:03,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 20:20:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 20:20:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 20:20:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-12-08 20:20:03,095 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-12-08 20:20:03,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:03,095 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-12-08 20:20:03,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 20:20:03,095 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-12-08 20:20:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 20:20:03,096 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:03,096 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:03,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:03,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:03,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2018-12-08 20:20:03,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:20:03,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:03,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:03,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:03,098 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:20:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:03,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:03,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 20:20:03,138 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:20:03,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 20:20:03,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 20:20:03,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:03,140 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 3 states. [2018-12-08 20:20:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:03,150 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-12-08 20:20:03,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 20:20:03,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-12-08 20:20:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:03,151 INFO L225 Difference]: With dead ends: 57 [2018-12-08 20:20:03,151 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 20:20:03,152 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:03,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 20:20:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 20:20:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 20:20:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-12-08 20:20:03,156 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 27 [2018-12-08 20:20:03,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:03,157 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-12-08 20:20:03,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 20:20:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-12-08 20:20:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 20:20:03,158 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:03,158 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:03,158 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:03,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1590755806, now seen corresponding path program 1 times [2018-12-08 20:20:03,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:20:03,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:03,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:03,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:20:03,159 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:20:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:03,208 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 20:20:03,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:20:03 BoogieIcfgContainer [2018-12-08 20:20:03,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 20:20:03,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 20:20:03,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 20:20:03,229 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 20:20:03,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:02" (3/4) ... [2018-12-08 20:20:03,232 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 20:20:03,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 20:20:03,233 INFO L168 Benchmark]: Toolchain (without parser) took 837.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.1 MB in the beginning and 1.0 GB in the end (delta: -82.8 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:03,234 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:20:03,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.1 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:03,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.57 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:03,235 INFO L168 Benchmark]: Boogie Preprocessor took 23.77 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:03,235 INFO L168 Benchmark]: RCFGBuilder took 274.62 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:03,236 INFO L168 Benchmark]: TraceAbstraction took 333.36 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: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:03,236 INFO L168 Benchmark]: Witness Printer took 3.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:03,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.1 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.57 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.77 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 274.62 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 333.36 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: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=10737418246, one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; VAL [iptr={10737418250:0}, one_modf=1] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=10737418254, iptr={10737418250:0}, one_modf=1] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=10737418254, iptr={10737418250:0}, iptr={10737418250:0}, one_modf=1, x=10737418254] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, one_modf=1, x=10737418254] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L30] COND TRUE j0 < 0 VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [\old(x)=10737418254, \result=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L118] RET, EXPR modf_double(x, &iptr) VAL [iptr={10737418250:0}, modf_double(x, &iptr)=10737418254, one_modf=1, x=10737418254] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, one_modf=1, res=10737418254, x=10737418254] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=10737418242, one_modf=1] [L15] return x != x; VAL [\old(x)=10737418242, \result=1, one_modf=1, x=10737418242] [L121] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, one_modf=1, res=10737418254, x=10737418254] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1, res=10737418254, x=10737418254] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=10737418254, one_modf=1] [L15] return x != x; VAL [\old(x)=10737418254, \result=0, one_modf=1, x=10737418254] [L121] RET, EXPR isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=10737418254, x=10737418254] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=10737418254, x=10737418254] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={10737418250:0}, one_modf=1, res=10737418254, x=10737418254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-08 20:20:04,648 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 20:20:04,649 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 20:20:04,657 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 20:20:04,657 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 20:20:04,658 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 20:20:04,659 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 20:20:04,660 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 20:20:04,661 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 20:20:04,662 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 20:20:04,662 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 20:20:04,663 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 20:20:04,663 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 20:20:04,664 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 20:20:04,665 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 20:20:04,665 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 20:20:04,666 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 20:20:04,667 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 20:20:04,668 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 20:20:04,669 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 20:20:04,670 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 20:20:04,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 20:20:04,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 20:20:04,672 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 20:20:04,673 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 20:20:04,673 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 20:20:04,674 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 20:20:04,675 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 20:20:04,675 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 20:20:04,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 20:20:04,676 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 20:20:04,676 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 20:20:04,677 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 20:20:04,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 20:20:04,677 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 20:20:04,678 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 20:20:04,678 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 20:20:04,688 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 20:20:04,689 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 20:20:04,689 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 20:20:04,689 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 20:20:04,689 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 20:20:04,689 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 20:20:04,690 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 20:20:04,690 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 20:20:04,690 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 20:20:04,690 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 20:20:04,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 20:20:04,690 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 20:20:04,691 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 20:20:04,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 20:20:04,692 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 20:20:04,692 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 20:20:04,693 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 20:20:04,693 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 20:20:04,693 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 20:20:04,693 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 20:20:04,693 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2018-12-08 20:20:04,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 20:20:04,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 20:20:04,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 20:20:04,725 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 20:20:04,725 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 20:20:04,726 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 20:20:04,760 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/2805ef756/1bb8ce33478546b0a60c8a60e3fe90ea/FLAG8448e5be0 [2018-12-08 20:20:05,045 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 20:20:05,045 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-12-08 20:20:05,049 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/2805ef756/1bb8ce33478546b0a60c8a60e3fe90ea/FLAG8448e5be0 [2018-12-08 20:20:05,056 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/data/2805ef756/1bb8ce33478546b0a60c8a60e3fe90ea [2018-12-08 20:20:05,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 20:20:05,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 20:20:05,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:05,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 20:20:05,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 20:20:05,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3832628d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05, skipping insertion in model container [2018-12-08 20:20:05,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 20:20:05,078 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 20:20:05,178 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:05,189 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 20:20:05,212 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:20:05,222 INFO L195 MainTranslator]: Completed translation [2018-12-08 20:20:05,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05 WrapperNode [2018-12-08 20:20:05,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 20:20:05,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 20:20:05,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 20:20:05,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 20:20:05,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 20:20:05,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 20:20:05,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 20:20:05,240 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 20:20:05,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... [2018-12-08 20:20:05,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 20:20:05,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 20:20:05,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 20:20:05,307 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 20:20:05,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 [2018-12-08 20:20:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-08 20:20:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-08 20:20:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 20:20:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 20:20:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 20:20:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 20:20:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 20:20:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 20:20:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 20:20:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 20:20:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 20:20:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 20:20:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-12-08 20:20:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-12-08 20:20:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 20:20:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 20:20:05,470 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,493 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,529 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,541 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,610 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,621 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,637 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,660 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,977 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:05,992 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:20:06,003 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 20:20:06,003 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-12-08 20:20:06,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:06 BoogieIcfgContainer [2018-12-08 20:20:06,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 20:20:06,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 20:20:06,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 20:20:06,005 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 20:20:06,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:20:05" (1/3) ... [2018-12-08 20:20:06,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1e6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:06, skipping insertion in model container [2018-12-08 20:20:06,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:20:05" (2/3) ... [2018-12-08 20:20:06,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1e6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:20:06, skipping insertion in model container [2018-12-08 20:20:06,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:06" (3/3) ... [2018-12-08 20:20:06,007 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-12-08 20:20:06,012 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 20:20:06,016 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 20:20:06,024 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 20:20:06,041 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 20:20:06,041 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 20:20:06,041 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 20:20:06,041 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 20:20:06,041 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 20:20:06,041 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 20:20:06,041 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 20:20:06,041 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 20:20:06,042 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 20:20:06,051 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-12-08 20:20:06,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 20:20:06,054 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:06,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:06,056 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:06,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:06,059 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2018-12-08 20:20:06,062 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 20:20:06,062 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 [2018-12-08 20:20:06,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:06,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 20:20:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:06,123 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 20:20:06,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:06,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 20:20:06,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 20:20:06,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 20:20:06,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 20:20:06,142 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-12-08 20:20:06,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:06,158 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-12-08 20:20:06,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 20:20:06,159 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-08 20:20:06,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:06,167 INFO L225 Difference]: With dead ends: 108 [2018-12-08 20:20:06,167 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 20:20:06,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 20:20:06,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 20:20:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-08 20:20:06,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-08 20:20:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-12-08 20:20:06,197 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-12-08 20:20:06,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:06,198 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-12-08 20:20:06,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 20:20:06,198 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-12-08 20:20:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 20:20:06,199 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:06,199 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:06,199 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:06,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:06,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2018-12-08 20:20:06,200 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 20:20:06,200 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 [2018-12-08 20:20:06,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:06,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 20:20:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:06,384 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 20:20:06,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:06,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 20:20:06,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 20:20:06,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 20:20:06,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 20:20:06,393 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-12-08 20:20:09,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:09,547 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-12-08 20:20:09,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 20:20:09,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-08 20:20:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:09,550 INFO L225 Difference]: With dead ends: 72 [2018-12-08 20:20:09,550 INFO L226 Difference]: Without dead ends: 43 [2018-12-08 20:20:09,551 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-08 20:20:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-08 20:20:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-12-08 20:20:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 20:20:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-12-08 20:20:09,556 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 27 [2018-12-08 20:20:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:09,556 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-12-08 20:20:09,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 20:20:09,556 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-12-08 20:20:09,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-08 20:20:09,557 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:09,557 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:09,557 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:09,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:09,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1705207589, now seen corresponding path program 1 times [2018-12-08 20:20:09,558 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 20:20:09,558 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/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 [2018-12-08 20:20:09,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:09,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 20:20:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:20:09,673 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 20:20:09,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:09,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 20:20:09,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 20:20:09,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 20:20:09,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:09,682 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 3 states. [2018-12-08 20:20:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:09,690 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-12-08 20:20:09,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 20:20:09,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-12-08 20:20:09,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:09,692 INFO L225 Difference]: With dead ends: 44 [2018-12-08 20:20:09,692 INFO L226 Difference]: Without dead ends: 41 [2018-12-08 20:20:09,692 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 20:20:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-08 20:20:09,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-08 20:20:09,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 20:20:09,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-12-08 20:20:09,698 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 28 [2018-12-08 20:20:09,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:09,699 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-12-08 20:20:09,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 20:20:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-08 20:20:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-08 20:20:09,700 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:09,701 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:09,701 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:09,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:09,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1088160399, now seen corresponding path program 1 times [2018-12-08 20:20:09,701 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 20:20:09,702 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-08 20:20:09,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:20:09,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 20:20:09,914 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2018-12-08 20:20:10,038 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 20:20:10,074 INFO L303 Elim1Store]: Index analysis took 159 ms [2018-12-08 20:20:10,075 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 25 [2018-12-08 20:20:10,076 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 20:20:10,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 20:20:10,419 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 20:20:10,419 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:48, output treesize:18 [2018-12-08 20:20:12,482 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_2 (_ BitVec 32)) (v_arrayElimCell_3 (_ BitVec 32))) (= (fp.sub roundNearestTiesToEven |c_modf_double_#in~x| (let ((.cse0 (concat v_arrayElimCell_3 v_arrayElimCell_2))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) |c_modf_double_#res|)) is different from true [2018-12-08 20:20:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 20:20:12,610 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 20:20:12,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:20:12,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-08 20:20:12,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 20:20:12,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 20:20:12,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=58, Unknown=1, NotChecked=14, Total=90 [2018-12-08 20:20:12,619 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 10 states. [2018-12-08 20:20:16,734 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-08 20:20:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:20:17,259 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-08 20:20:17,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 20:20:17,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-12-08 20:20:17,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:20:17,260 INFO L225 Difference]: With dead ends: 52 [2018-12-08 20:20:17,260 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 20:20:17,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=42, Invalid=142, Unknown=2, NotChecked=24, Total=210 [2018-12-08 20:20:17,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 20:20:17,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 20:20:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 20:20:17,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-12-08 20:20:17,266 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 33 [2018-12-08 20:20:17,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:20:17,266 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-12-08 20:20:17,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 20:20:17,266 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-12-08 20:20:17,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-08 20:20:17,267 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:20:17,267 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 20:20:17,267 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:20:17,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:20:17,267 INFO L82 PathProgramCache]: Analyzing trace with hash 2004349664, now seen corresponding path program 1 times [2018-12-08 20:20:17,268 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 20:20:17,268 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-08 20:20:17,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:20:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 20:20:17,952 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 20:20:17,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:20:17 BoogieIcfgContainer [2018-12-08 20:20:17,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 20:20:17,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 20:20:17,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 20:20:17,979 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 20:20:17,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:20:06" (3/4) ... [2018-12-08 20:20:17,980 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 20:20:18,015 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4c6f096f-36b3-4ac0-aab4-ad71694a1e49/bin-2019/utaipan/witness.graphml [2018-12-08 20:20:18,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 20:20:18,016 INFO L168 Benchmark]: Toolchain (without parser) took 12957.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 942.0 MB in the beginning and 923.7 MB in the end (delta: 18.4 MB). Peak memory consumption was 170.9 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:18,017 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:20:18,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.71 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:18,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.76 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:20:18,017 INFO L168 Benchmark]: Boogie Preprocessor took 66.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -207.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:18,017 INFO L168 Benchmark]: RCFGBuilder took 696.71 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:18,018 INFO L168 Benchmark]: TraceAbstraction took 11974.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 930.6 MB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:18,018 INFO L168 Benchmark]: Witness Printer took 37.18 ms. Allocated memory is still 1.2 GB. Free memory was 930.6 MB in the beginning and 923.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-08 20:20:18,019 INFO L336 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.71 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.76 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -207.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 696.71 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11974.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 930.6 MB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 11.5 GB. * Witness Printer took 37.18 ms. Allocated memory is still 1.2 GB. Free memory was 930.6 MB in the beginning and 923.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; VAL [iptr={2:0}, one_modf=1.0, x=NaN] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=NaN, iptr={2:0}, one_modf=1.0] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=NaN, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [\old(x)=NaN, \result=0.0, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=0.0] [L118] RET, EXPR modf_double(x, &iptr) VAL [iptr={2:0}, modf_double(x, &iptr)=0.0, one_modf=1.0, x=NaN] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L15] return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L121] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=0.0, one_modf=1.0] [L15] return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L121] RET, EXPR isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 11.9s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 7.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 179 SDtfs, 142 SDslu, 360 SDs, 0 SdLazy, 170 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 109 ConstructedInterpolants, 16 QuantifiedInterpolants, 14078 SizeOfPredicates, 12 NumberOfNonLiveVariables, 330 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...